Modbus, reading registers with strings

[schippi]

Hello Erwin,

many thanks!

I tried your code, but unfortunately I got no result anywhere. "log(result)" serves nothing! It looks like the code stops at the (in homelynk unknown ?) function called "lmcore.inttostr()" ???

Code:

require('luamodbus')
mb = luamodbus.tcp()

mb:open('192.168.2.1', 502)
mb:connect()

r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16 = mb:readregisters(71,16)
log(r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16)

result = lmcore.inttostr(r1) .. lmcore.inttostr(r2) .. lmcore.inttostr(r3) .. lmcore.inttostr(r4) .. lmcore.inttostr(r5) .. lmcore.inttostr(r6) .. lmcore.inttostr(r7) .. lmcore.inttostr(r8) .. lmcore.inttostr(r9) .. lmcore.inttostr(r10) .. lmcore.inttostr(r11) .. lmcore.inttostr(r12) .. lmcore.inttostr(r13) .. lmcore.inttostr(r14) .. lmcore.inttostr(r15) .. lmcore.inttostr(r16)

log(result)
mb:close()

I read out the registers 71 to 87 which should contain the router name: "RUT955" and  logged the variables (r1 to r16) directly and this is the current log

Code:

RouterModbus 21.02.2018 20:07:10
* arg: 1
 * number: 21077
* arg: 2
 * number: 21561
* arg: 3
 * number: 13621
* arg: 4
 * number: 18487
* arg: 5
 * number: 22064
* arg: 6
 * number: 12848
* arg: 7
 * number: 0
* arg: 8
 * number: 0
* arg: 9
 * number: 0
* arg: 10
 * number: 0
* arg: 11
 * number: 0
* arg: 12
 * number: 0
* arg: 13
 * number: 0
* arg: 14
 * number: 0
* arg: 15
 * number: 0
* arg: 16
 * number: 0

I attached the routers short modbus manual.

B.R,

Uwe