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Logic Machine Forum › LogicMachine eco-system › Gateway v
Modbus stops working after

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Modbus stops working after
AlexD Offline
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#1
05.10.2024, 17:53
Hello, 

I just connected my LM5 to my ventilation system (Villavent VTR300). Ive been connected to the modbus for a long time with two different KNX Modbus gateways (weinzierl and MDT) and it have been working perfectly. I now wanted to test the LM5 instead. But after a few seconds I get a error "operaation timed out". I have connected GND, and I have disconnected the other gateways. 
I get values right after I change the RTU settings between half and full duplex. Then the erros pops after 20 seconds. 
What could be wrong here? The Baud rate is correct (9600).
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admin Offline
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#2
07.10.2024, 06:35
Try adding read_delay to your profile: https://kb.logicmachine.net/misc/modbus-...read_delay
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AlexD Offline
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Posts: 14
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#3
07.10.2024, 07:13
(07.10.2024, 06:35)admin Wrote: Try adding read_delay to your profile: https://kb.logicmachine.net/misc/modbus-...read_delay

Hello, 

Ah, thank you! Maybe a stupid question, but where in the profile do I add it? I'll add it here. 

Code:
{
"manufacturer": "SystemAir",
"description": "Residential unit modbus",
"mapping": [
{ "name": "REG_FAN_SPEED_LEVEL", "4/7/26": 4197, "bus_datatype": "uint16", "type": "register", "address": 100,  "writable": 1 },
{ "name": "REG_FAN_SF_FLOW_LOW", "4/7/27": 4198, "bus_datatype": "uint16", "type": "register", "address": 101, "writable": 0 },
{ "name": "REG_FAN_EF_FLOW_LOW", "4/7/28": 4199, "bus_datatype": "uint16", "type": "register", "address": 102, "writable": 1 },
{ "name": "REG_FAN_SF_FLOW_NOM", "4/7/29": 4200, "bus_datatype": "uint16", "type": "register", "address": 103, "writable": 1 },
{ "name": "REG_FAN_EF_FLOW_NOM", "4/7/30": 4201, "bus_datatype": "uint16", "type": "register", "address": 104, "writable": 1 },
{ "name": "REG_FAN_SF_FLOW_HIGH", "4/7/31": 4202, "bus_datatype": "uint16", "type": "register", "address": 105, "writable": 0 },
{ "name": "REG_FAN_EF_FLOW_HIGH", "4/7/32": 4203, "bus_datatype": "uint16", "type": "register", "address": 106, "writable": 1 },
{ "name": "REG_FAN_FLOW_UNITS", "4/7/33": 4204, "bus_datatype": "uint16", "type": "register", "address": 107, "writable": 1 },
{ "name": "REG_FAN_SF_PWM", "4/7/34": 4205, "bus_datatype": "float16", "type": "register", "address": 108, "writable": 0 },
{ "name": "REG_FAN_EF_PWM", "4/7/35": 4206, "bus_datatype": "float16", "type": "register", "address": 109, "writable": 0 },
{ "name": "REG_FAN_SF_RPM", "4/7/36": 4207, "bus_datatype": "float16", "type": "register", "address": 110, "writable": 0 },
{ "name": "REG_FAN_EF_RPM", "4/7/37": 4208, "bus_datatype": "float16", "type": "register", "address": 111, "writable": 0 },
{ "name": "REG_FAN_SPEED_LVL_CD", "4/7/38": 4209, "bus_datatype": "float16", "type": "register", "address": 112, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_RESET", "4/7/39": 4211, "bus_datatype": "float16", "type": "register", "address": 114, "writable": 1 },
{ "name": "REG_FAN_SPEED_LOG_SF_LVL1", "4/7/40": 4212, "bus_datatype": "float16", "type": "register", "address": 115, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_LVL2", "4/7/41": 4213, "bus_datatype": "float16", "type": "register", "address": 116, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_LVL3", "4/7/42": 4214, "bus_datatype": "float16", "type": "register", "address": 117, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_LVL4", "4/7/43": 4215, "bus_datatype": "float16", "type": "register", "address": 118, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_LVL5", "4/7/44": 4216, "bus_datatype": "float16", "type": "register", "address": 119, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_LVL1", "4/7/45": 4217, "bus_datatype": "float16", "type": "register", "address": 120, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_LVL2", "4/7/46": 4218, "bus_datatype": "float16", "type": "register", "address": 121, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_LVL3", "4/7/47": 4219, "bus_datatype": "float16", "type": "register", "address": 122, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_LVL4", "4/7/48": 4220, "bus_datatype": "float16", "type": "register", "address": 123, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_LVL5", "4/7/49": 4221, "bus_datatype": "float16", "type": "register", "address": 124, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_NR_LVL1", "4/7/50": 4222, "bus_datatype": "float16", "type": "register", "address": 125, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_NR_LVL2", "4/7/51": 4223, "bus_datatype": "float16", "type": "register", "address": 126, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_NR_LVL3", "4/7/52": 4224, "bus_datatype": "float16", "type": "register", "address": 127, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_NR_LVL4", "4/7/53": 4225, "bus_datatype": "float16", "type": "register", "address": 128, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_SF_NR_LVL5", "4/7/54": 4226, "bus_datatype": "float16", "type": "register", "address": 129, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_NR_LVL1", "4/7/55": 4227, "bus_datatype": "float16", "type": "register", "address": 130, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_NR_LVL2", "4/7/56": 4228, "bus_datatype": "float16", "type": "register", "address": 131, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_NR_LVL3", "4/7/57": 4229, "bus_datatype": "float16", "type": "register", "address": 132, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_NR_LVL4", "4/7/58": 4230, "bus_datatype": "float16", "type": "register", "address": 133, "writable": 0 },
{ "name": "REG_FAN_SPEED_LOG_EF_NR_LVL5", "4/7/59": 4231, "bus_datatype": "float16", "type": "register", "address": 134, "writable": 0 },
{ "name": "REG_FAN_SYSTEM_CURVE_SF", "4/7/60": 4232, "bus_datatype": "float16", "type": "register", "address": 135, "writable": 1 },
{ "name": "REG_FAN_SYSTEM_CURVE_EF", "4/7/61": 4233, "bus_datatype": "float16", "type": "register", "address": 136, "writable": 1 },
{ "name": "REG_FAN_CONTROL_TYPE", "4/7/62": 4234, "bus_datatype": "float16", "type": "register", "address": 137, "writable": 1 },
{ "name": "REG_HC_HEATER_TYPE", "4/7/63": 4297, "bus_datatype": "uint16", "type": "register", "address": 200, "writable": 1 },
{ "name": "REG_HC_COOLER_TYPE", "4/7/64": 4298, "bus_datatype": "uint16", "type": "register", "address": 201, "writable": 1 },
{ "name": "REG_HC_WCWH_STATE", "4/7/65": 4299, "bus_datatype": "float16", "type": "register", "address": 202, "writable": 0 },
{ "name": "REG_HC_WC_SIGNAL", "4/7/66": 4300, "bus_datatype": "float16", "type": "register", "address": 203, "writable": 0 },
{ "name": "REG_HC_WH_SIGNAL", "4/7/67": 4301, "bus_datatype": "float16", "type": "register", "address": 204, "writable": 0 },
{ "name": "REG_HC_FPS_LEVEL", "4/7/68": 4302, "bus_datatype": "uint16", "type": "register", "address": 205, "writable": 1 },
{ "name": "REG_HC_TEMP_LVL", "4/7/69": 4303, "bus_datatype": "float16", "type": "register", "address": 206, "writable": 1 },
{ "name": "REG_HC_TEMP_SP", "4/7/70": 4304, "bus_datatype": "uint16", "type": "register", "address": 207, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_LVL1", "4/7/71": 4305, "bus_datatype": "uint16", "type": "register", "address": 208, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_LVL2", "4/7/72": 4306, "bus_datatype": "uint16", "type": "register", "address": 209, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_LVL3", "4/7/73": 4307, "bus_datatype": "uint16", "type": "register", "address": 210, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_LVL4", "4/7/74": 4308, "bus_datatype": "uint16", "type": "register", "address": 211, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_LVL5", "4/7/75": 4309, "bus_datatype": "uint16", "type": "register", "address": 212, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_IN1", "4/7/76": 100, "bus_datatype": "float16", "datatype": "int16", "type": "register", "address": 213, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_IN2", "4/7/77": 101, "bus_datatype": "float16", "datatype": "int16", "type": "register", "address": 214, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_IN3", "4/7/78": 102, "bus_datatype": "float16", "datatype": "int16","type": "register", "address": 215, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_IN4", "4/7/79": 103, "bus_datatype": "float16", "datatype": "int16","type": "register", "address": 216, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_HC_TEMP_IN5", "4/7/80": 104, "bus_datatype": "float16", "datatype": "int16", "type": "register", "address": 217, "value_multiplier": 0.1, "writable": 0 },
{ "name": "REG_DAMPER_PWM", "4/7/81": 4100, "bus_datatype": "float16", "type": "register", "address": 300, "writable": 0 },
{ "name": "REG_ROTOR_STATE", "4/7/82": 4101, "bus_datatype": "uint16", "type": "register", "address": 350, "writable": 0 },
{ "name": "REG_ROTOR_RELAY_ACTIVE", "4/7/83": 4102, "bus_datatype": "float16", "type": "register", "address": 351, "writable": 0 },
{ "name": "REG_SYSTEM_TYPE", "4/7/84": 4103, "bus_datatype": "uint16", "type": "register", "address": 500, "writable": 1 },
{ "name": "REG_SYSTEM_PROG_V_HIGH", "4/7/85": 4104, "bus_datatype": "uint16", "type": "register", "address": 501, "writable": 0 },
{ "name": "REG_SYSTEM_PROG_V_MID", "4/7/86": 4105, "bus_datatype": "uint16", "type": "register", "address": 502, "writable": 0 },
{ "name": "REG_SYSTEM_PROG_V_LOW", "4/7/87": 4106, "bus_datatype": "uint16", "type": "register", "address": 503, "writable": 0 },
{ "name": "REG_SYSTEM_BOOT_PROG_V_HIGH", "4/7/88": 4107, "bus_datatype": "uint16", "type": "register", "address": 504, "writable": 0 },
{ "name": "REG_SYSTEM_BOOT_PROG_V_MID", "4/7/89": 4108, "bus_datatype": "uint16", "type": "register", "address": 505, "writable": 0 },
{ "name": "REG_SYSTEM_BOOT_PROG_V_LOW", "4/7/90": 4109, "bus_datatype": "uint16", "type": "register", "address": 506, "writable": 0 },
{ "name": "REG_STORE_NVM", "4/7/91": 4110, "bus_datatype": "uint16", "type": "register", "address": 548, "writable": 1 },
{ "name": "REG_CLK_S", "4/7/92": 4111, "bus_datatype": "float16", "type": "register", "address": 550, "writable": 1 },
{ "name": "REG_CLK_M", "4/7/93": 4112, "bus_datatype": "float16", "type": "register", "address": 551, "writable": 1 },
{ "name": "REG_CLK_H", "4/7/94": 4113, "bus_datatype": "float16", "type": "register", "address": 552, "writable": 1 },
{ "name": "REG_CLK_D", "4/7/95": 4114, "bus_datatype": "float16", "type": "register", "address": 553, "writable": 1 },
{ "name": "REG_CLK_MNTH", "4/7/96": 4115, "bus_datatype": "float16", "type": "register", "address": 554, "writable": 1 },
{ "name": "REG_CLK_Y", "4/7/97": 4116, "bus_datatype": "float16", "type": "register", "address": 555, "writable": 1 },
{ "name": "REG_CLK_WD", "4/7/98": 4117, "bus_datatype": "float16", "type": "register", "address": 556, "writable": 0 },
{ "name": "REG_FILTER_PER", "4/7/99": 4118, "bus_datatype": "float16", "type": "register", "address": 600, "writable": 1 },
{ "name": "REG_FILTER_DAYS", "4/7/100": 4119, "bus_datatype": "float16", "type": "register", "address": 601, "writable": 1 },
{ "name": "REG_DEFR_STATE_VTC", "4/7/101": 4120, "bus_datatype": "float16", "type": "register", "address": 650, "writable": 0 },
{ "name": "REG_DEFR_CONFIGURATION", "4/7/102": 4121, "bus_datatype": "float16", "type": "register", "address": 651, "writable": 0 },
{ "name": "REG_DEFR_UNBAL_ALLOWED", "4/7/103": 4122, "bus_datatype": "float16", "type": "register", "address": 652, "writable": 1 },
{ "name": "REG_DEFR_MODE_VTC", "4/7/104": 4123, "bus_datatype": "float16", "type": "register", "address": 653, "writable": 1 },
{ "name": "REG_DEFR_STATE_VR", "4/7/105": 4124, "bus_datatype": "float16", "type": "register", "address": 670, "writable": 0 },
{ "name": "REG_DEFR_MODE_VR", "4/7/106": 4125, "bus_datatype": "float16", "type": "register", "address": 671, "writable": 1 },
{ "name": "REG_ALARMS_ALL", "4/7/107": 4126, "bus_datatype": "uint16", "type": "register", "address": 800, "writable": 0 },
{ "name": "REG_ALARMS_RELAY_ACTIVE", "4/7/108": 4127, "bus_datatype": "float16", "type": "register", "address": 801, "writable": 0 }
]
}
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admin Offline
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#4
07.10.2024, 07:16
Like this:
Code:
{
"manufacturer": "SystemAir",
"description": "Residential unit modbus",
"read_delay": 0.1,
"mapping": [...]
}
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AlexD Offline
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#5
07.10.2024, 08:32
Seems to be the same result. It works for a less then a minute after I save the RTU settings, then the same error occure. Poll intervall i sat to 15 seconds and timeout 0,5 seconds. Is there anything I should change here? I have done some tests without that solving anything. Or maybe I should change the delay time in the profile higher then 0.1s?
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admin Offline
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#6
07.10.2024, 08:34
Have you created the device again from scratch after updating the profile? Updating the profile won't change existing device settings.
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AlexD Offline
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#7
07.10.2024, 08:53 (This post was last modified: 07.10.2024, 08:58 by AlexD.)
(07.10.2024, 08:34)admin Wrote: Have you created the device again from scratch after updating the profile? Updating the profile won't change existing device settings.

Yes, I deleted the device and the profile, and added everything from scratch after I added the delay in JSON.
Okey, I think I figuered out what was causing the problem... I had made a modbus script long time ago for some testing that was still activated.... When I deactivated it, it seems to be workig as expected. So the fault was on my side! 
Sorry for wasting your time, and thank you once again! Big Grin
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admin Offline
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#8
07.10.2024, 09:05
You can try setting read_delay to 1 second (max value). If it works then keep lowering it until it stops working.
Profile can be improved by using block read:
https://forum.logicmachine.net/showthrea...9#pid30319
https://forum.logicmachine.net/showthrea...8#pid19268
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