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GW-7552-B / GW-7552-M PROFIBUS/MODBUS GATEWAY User Manual
(Version 1.60, May/2017)
PAGE: 11
Figure 6 Configuration of pull high/low resistor for the RS-422 port
Figure 7 The positions of pull high/low resistors in GW-7552-B / GW-7552-M
module
2.3.3 RS-485 connection
The RS-485 wiring diagram is shown in
figure 8
.
The GW-7552-B / GW-7552-M gateway can be a Modbus master or Modbus