7.3 Deployment of RS485 interface for PtP
The RS485 interface from the CPU is fix set to PtP communication. Parameterization and
communication happens by means of SFCs.
n
Logical states represented by voltage differences between the two cores of a twisted
pair cable
n
Serial bus connection in two-wire technology using half duplex mode
n
Data communications up to a max. distance of 500m
n
Data communication rate up to 115.2kbaud
9pin SubD jack
Pin
RS485
1
n.c.
2
M24V
3
RxD/TxD-P (Line B)
4
RTS
5
M5V
6
P5V
7
P24V
8
RxD/TxD-N (Line A)
9
n.c.
Overview
Properties RS485
RS485
VIPA System 300S
+
Deployment PtP communication
Deployment of RS485 interface for PtP
HB140 | CPU-SC | 313-5BF23 | en | 19-01
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