SMC Networks HRZ001-L Operation Manual page 84

HRX-OM-I051
Chapter 8 Appendix
 Serial RS-485
Item
Connector No.
Connector type (this system)
Standard
Protocol
Circuit block diagram
8.1 Specification
8-12
Table 8-12 Serial RS-485
D-sub9P female connector
Internal
circuit
Specification
P2
EIA RS485
Modicon Modbus
This system Your system
2
SD+
7
SD-
5
SG
HRZ Series