SMC Networks HRZD020-WS-WS Operation Manual page 117

Serial RS-485, RS-232C
Item
Connector No.
Connector type (this product)
Standard
Protocol
Circuit block diagram
In case of using serial communication, mount the ferrite core
(accessory) to serial communication cable (1turn). It causes a
communication trouble by the noise if it does not mount it.
HRZD Series
Table 8-6 Serial RS-485, RS-232C
This system
Internal
circuit
When RS-485 is selected
[Tips]
Serial RS-485 and RS-232C must be used separately. See section "5.3.18
Communication setting screen" on page 5-27 for selection of communication
specifications.
Specification
P3
D-sub9P female connector
EIA RS-485, RS-232C
Modicon Modbus
Your system
2
SD+
7
SD-
5
SG
HRX-OM-M005
Chapter 8 Appendix
(M2.6×0.45)
This system Your system
2
Internal
RD
circuit 3
TD
5
SG
When RS-232C is selected
8.1 Specification
8-9