Technical Specifications
7-70
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
7.17 EM 148-P DI 4 DC 24V/DO 2 P expansion module
(pneumatic module) (6ES7 148-1DA00-0XA0)
Features
The EM 148-P DI 4 x DC 24V/DO 2 x P expansion module, order number
6ES7 148-1DA00-0XA0, has the following features:
4 digital inputs
Rated input voltage of 24 VDC
Suitable for switches and proximity switches (BEROs)
2 digital outputs with 2 integrated 4/2-way valves
Permissible pressure range of 3 to 8 bars
Pinout of the sockets for DI
The following table shows the pinout of the two sockets used to connect the digital
inputs. The connector wiring is described in Section 4.4.4. You can find the layout
of the sockets in Appendix C.
Table 7-34 Pinout of the sockets for 2-channel digital inputs (pneumatic module)
Pin Assignment of socket X1 Assignment of socket X2 Front view of
socket
1 Sensor supply output 1L+
2 Input signal, channel 1 Input signal, channel 3
2
3 Chassis ground, power supply
1
2
3
5
4 Input signal, channel 0 Input signal, channel 2
4
5 PE
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) is achieved.
Switch-on sequence
The 4/2-way valve is not of the contention-free type.
Consequently, it is important to switch on the compressed air supply first, and then
switch on the voltage.
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