CTI 2557 16-Channel Isolated RTD Input Module

Description

The 2557 is a high-speed 16-channel RTD input module designed to be

compatible with the CTI 2500 Series or Simatic® 505 I/O base. 

The 2557 translates millivolt level signals from the RTD element into a

scaled temperature value. Multiple RTD types are supported as well as

millivolt inputs. The module performs scaling, alarm detection, filtering,

peak and valley hold, and averaging.

The standard mode logs in as a 16 WX input module. The advanced

mode logs in as 16 X, 16 Y, 32 WX, and 32 WY registers in the PLC.

Features

• Simatic® 505 I/O base format

• 1500 V isolation channel-to-PLC backplane

• 1500 V isolation channel-to-channel

• 16 bit ADC for each channel

• Supports 10Ω Cu, 100Ω Pt, and 120Ω Ni RTDs and millivolt inputs

• Fast 20 mSec update time

• Support for 2. 3. or 4 wire RTD elements