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Technical Specifications
Pinout of the sockets for DO
The following table shows the pinout of the four sockets used to connect the digital
outputs. You can find the layout of the sockets in Appendix C. The connector wiring
is described in Section 4.4.4.
Table 7-27 Pinout of the sockets for 4-channel digital outputs
Pin
Assignment of
socket X1
1
–
2
Output signal,
channel 1*
3
Chassis ground, load power supply
4
Output signal,
channel 0
5
PE
*
Note: Channel 1 and channel 3 are only allowed to be used at one socket (X1/X2 or X3/X4).
Basic circuit diagram
The basic circuit diagram of the expansion module is shown below.
Figure 7-14
Covering up unused connections
You must seal off any connections which are not required with M12 screw caps, in
order to ensure that the degree of protection (IP 65, IP 66 or IP 67) is achieved.
7-58
Assignment of
socket X2
–
Output signal,
channel 1*
Load power supply via
backplane bus
2L+
2M
Socket con-
nections (see
Table 7-27)
Basic circuit diagram of expansion module EM 142 DO 4 x DC 24V/2A
Assignment of
Assignment of
socket X3
socket X4
Output signal,
–
channel 3*
Output signal,
Output signal,
channel 2
channel 3*
2M
Front view
of socket
(Front)
2
2
1
3
5
5
4
Backplane bus
interface
SF
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
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