1
Contents
1. Introduction...................................................................................................................2
2. Description of Each Part...............................................................................................3
2.1. Status LEDs ........................................................................................................3
2.2. Communication Connector..................................................................................4
3. Installation ....................................................................................................................5
3.1. Interface Module Installation ...............................................................................5
3.2. Connections and Functions.................................................................................6
3.2.1. Cable Connections..........................................................................................6
3.2.2. Setting the Functions ......................................................................................7
4. Modbus Memory...........................................................................................................9
4.1. Memory Map .......................................................................................................9
4.2. Handling Bits Directly ........................................................................................13
4.2.1. Handling Command Bits ...............................................................................13
4.2.2. Command bit execution procedure ...............................................................13
5. Timing Chart ...............................................................................................................14
6. Errors..........................................................................................................................15
6.1. Error Types .......................................................................................................15
7. Check Mode ...............................................................................................................16
7.1. Checking the Modbus-RTU Communication Status..........................................16
7.1.1. Entering the Check Mode..............................................................................16
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