Delta DVP-ES2 Manual do Utilizador descarregar pdf (Página 581)

3. Instruction Set

Points to note:

Relative flags and special D registers of COM2/COM3 :

COM2 COM3 Function Description

Retain communication setting

M1143 M1320 ASCII/RTU mode selection

D1120 D1109 Communication protocol

D1121 D1255 PLC communication address

M1122 M1316 Sending request

D1129 D1252 Communication timeout setting (ms)

M1127 M1318 Data receiving completed

- M1319 Data receiving error

- D1253 Communication error code

M1129 - Communication timeout setting (ms)

COM2 (RS-485) MODRD/MODWR/MODRW

data receiving error

MODRD/MODWR/MODRW parameter error

(Exception Code exists in received data)

Exception Code is stored in D1130

COM2 (RS-485) Error code (exception code)

returning from Modbus communication

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Delta DVP-ES2 Manual do Utilizador Página 581