Siemens 505-2571 User Manual download pdf (Page 32)

2552-A, 2553-A

2552-A 8-Channel Isolated RTD Input Module

The 2552-A is a high-speed 8-channel isolated RTD input

module compatible with the CTI 2500 Series® or Simatic®

505® I/O base. The 2552-A translates RTD input signals

into scaled temperature values and millivolt input signals

into equivalent digital words.

Features:

 Fast 2 mSec update time per channel

 Supports 100W platinum and 120W nickel RTDs

 1500V channel-to-channel isolation

 1500V channel-to-backplane isolation

 User selectable digital filtering

2553-A 2-Channel Mag Meter Input Module

The 2553-A is designed for precise measurement of mag

meter or turbine meter pulses both at low speeds and high

speeds (Reflex Counter Mode). The 2553-A can also be

used to compensate for measurement errors due to wheel

wobble (N-tooth counting mode).

Features:

 Reflex counter

 N-tooth mode counting

 1500V channel-to-channel isolation

 1500V channel-to-backplane isolation

 Reports measurement in frequency or period

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Siemens 505-2571 User Manual Page 32