Siemens SIMATIC S5-90U System Manual page 436

Module Spectrum
Start-Up of Module
Set the intended operating mode using the switch on the front panel of analog input module
464-8MD11. This switch is located on the right side at the top of the front panel of the module.
Power supply Set the switch to the available power supply frequency. This selects the inter-
frequency: gration time of the A/D converters for optimal interference voltage suppression.
Power frequency 50 Hz:
Power frequency 60 Hz:
Operation: Set the number of channels you wish to assign on the input module. If there
are fewer than four channels, less address space will be assigned and
measured values will be updated faster.
Broken wire: Broken wire signalling not possible
Table 15-21. Settings for the Operating Mode Switch for Analog Input Module 464-8MD11
Function
Power supply
frequency
Operation
No function
15-70
Integration time 20 ms
Integration time 16.66 ms
Settings for Operating Mode Switch
50 Hz
4
3
2
1
1 channel (ch.0) 2 chan. (ch.0 + ch.1)
4
3
2
1
4
3
2
1
S5-90U/S5-95U
60 Hz
4
3
2
1
4 chan. (ch.0 to 3)
4
3
2
1
4
3
2
1
EWA 4NEB 812 6115-02b
4
3
2
1