Siemens 505-2571 Specifications download pdf (Page 21)

2550-A, 2551-A

2550-A 8-Channel Isolated Analog Input

Module

The 2550-A is a high-speed 8-channel isolated

analog input module compatible with the CTI 2500

Series or Simatic

505 I/O base. The 2550-A trans-

lates analog input signals into an equivalent digital

word.

Features:

 Fast 4 mSec update time for all 8 channels

 External isolators not required

 1500V channel-to-channel isolation

 1500V channel-to-backplane isolation

 No external power supply required for module

 No external current resistor required

 On-board calculations for 4-20 mA offset inputs

2550-A, 2551-A

2551-A 8-Channel Isolated Thermocouple

Input Module

The 2551-A is a high-speed 8-channel isolated

thermocouple input module compatible with the CTI

2500 Series or Simatic

505 I/O base. The 2551-A

translates thermocouple input signals into scaled

temperature values and millivolt input signals into

equivalent digital words.

Features:

 Fast 2 mSec update time per channel

 Each input configurable for Type J, Type K, or

millivolts

 1500V channel-to-channel isolation

 1500V channel-to-backplane isolation

 Digital filtering circuit for increased noise

immunity

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Siemens 505-2571 Specifications Page 21