LTMT Main Unit with Modbus RTU Protocol
Overview
The LTMT main unit with Modbus RTU protocol is equipped with two Modbus RTU communication connector types on the front face:
-
Plug-in 4-terminal connector
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RJ45 port for HMI connection
The communication connectors follow the Modbus RTU interoperability standards. The use of the Modbus RTU 4-terminal connector is recommended. It allows daisy chain and point-to-point connection. The HMI port allows only point-to-point connection.
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Terminal connection port
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HMI port
Description
A |
Digital input terminals |
B |
RJ45 port for expansion unit connection |
C |
RJ45 port for HMI connection or Modbus RTU communication |
D | Modbus RTU communication open-style connector |
E |
Temperature input terminal |
F |
Power supply terminal |
G |
QR code to product information page |
H |
Test/Reset button |
I | Status LEDs |
J |
Digital output terminals |