Setting up communications with modbus – Micromod RetroPAK: SLC Configuration Manual User Manual
Page 79
Command Series Migration to MOD 30ML
Function Codes – Gallery Tutorial
SETTING UP COMMUNICATIONS WITH MODBUS
23. We need to setup communications for communicating with the MOD 30ML instrument so
that we can download the database to the instrument. We will use the built-in RS-232 port
of the instrument to download to the instrument via Modbus.
The instrument supports up to 2 communication ports. These ports can be used for
Modbus or ICN (Instrument Communication Network, a proprietary peer-to-peer
communication network). The built-in communication port can be used for either ICN or
Modbus.
The built-in communication port jumper is located on the main board of the instrument as
shown in the next figure. The possible positions are: RS232 (Modbus), RS 485 (Modbus)
and ICN.
Built-in
Communications
jumper
Jumper locations
for built-in comm.
port
Built-in Circuit
Modular Circuit
RS-232 RS-485
ICN
Jumper Removed
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