Siemens SINUMERIK 840DE - Page 53

03.06
4.3 NCU module interfaces
4-51
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
Link module interface
Connector name: None
Connector type: 9-pole sub D socket connector
Maximum cable length: 100 m
Table 4-7 Pin assignment of plug X112 at the link module
X112
Pin Name Type Pin Name Type
1 Not assigned 6 VP VO
2 Not assigned 7 Not assigned
3 RS_LINK B 8 XRS_LINK B
4 Not assigned 9 Not assigned
5 DGND VO
Signal names
XRS_LINK, RS_LINK Differential RS485 data – LINK
XRS_CLKCY; RS_CLKCY Differential RS485 data – CLKCY
DGND Signal Ground, isolated
VP +5 V, isolated
Signal type
B Bidirectional
O Output
VO Voltage Output
I Input
Only NCU 573.3/4/5
with link module
4 Descri
p
tion of the NCU