AH500 Module Manual 8.2.2 Profile 8-4 1 2 3 4 6 7 10SCM RUN ERROR CO M1 RS4 85 CO M2 RS4 85 FF FF 9 5 9 8 10 12 11 13 TR 1 O N O CO M 1 TX+ TX- RX+ D+ RX- D- SG SG FE FE TR 2 O N O CO M 2 TX+ TX- RX+ D+ RX- D- SG SG FE FE Number Name Description 1 Model name Model name of the module Operating status of the module RUN LED indicator (green) ON: The module is running. OFF: The module stops running. Error status of the module ON: There is a hardware error. OFF: The module is normal. ERROR LED indicator (red) Blink: 1. The setting of the module is incorrect, or there is a communication error. 2. Restoring the module to the default factory value COM1 (RS-485) LED ON:
RS-485 mode 2 indicator (green) OFF: RS-422 mode COM2 (RS-485) LED ON: RS-485 mode indicator (green) OFF: RS-422 mode Blink: The data is being transmitted through the TX1/TX2 LED indicator RS-485/RS422 port. (orange) OFF: The data is not being transmitted through the RS-485/RS422 port. Blink: The data is being reveived through the RX1/RX2 LED indicator RS-485/RS422 port. (orange) OFF: The data is not being reveived through the RS-485/RS422 port.
3 Switch of terminal resistor 1 Switching terminal resistor 1 ON/OFF 4 Terminals Terminals for COM1 (RS-422) 5 Terminals Terminals for COM1 (RS-485) 6 Switch of terminal resistor 2 Switching terminal resistor 2 ON/OFF 7 Terminals Terminals for COM2 (RS-422) 8 Terminals Terminals for COM2 (RS-485) European-style terminal 9 Terminals for wiring block 10 Label Nameplate