Cable Length - Siemens SIMATIC S5 CP 523 Manual

CP 523
3.2.3 Pin Assignments of Backplane Connector X1
d b
M
UBATT PESP
ADB 0
ADB 1
ADB 2
ADB 3
ADB 4
ADB 5
ADB 6
ADB 7
BAU ADB 8
ADB 9
ADB 10
ADB 11
BASP
M
3.3

Cable Length

The cable lengths given below are contingent to error-free data transmission.
TTY interface
• CP 523 active TTY
• Peripheral device active TTY : Refer to the User's Guide for the relevant device for the
Note:
Voltage drops on the cable and the module's sending and receiving elements must be noted
when using longer cables ( 2.2).
RS-232-C (V.24) interface
Cable length is not critical up to 15 m/49 ft. In general, longer cables can be used in conjuction
with lower baud rates.
EWA 4NEB 811 6044-02a
z
+5 V 2
4
RESET 6
MEMR 8
MEMW 10
RDY 12
DB 0 14
DB 1 16
DB 2 18
DB 3 20
DB 4 22
DB 5 24
DB 6 26
DB 7 28
30
32
Figure 3-5. Pin Assignments of Backplane Connector X1
: maximum cable length 10 m/33 ft.
permissible cable length (maximum 1000 m/3280 ft).
Hardware Installation
3-7