CTI  2558 8-Channel Analog Input Module



2558 8-Channel Analog Input Module

The 2558 is an 8-channel analog input module designed to be compatible with the 2500 Series® I/O base. The 2558 translates analog input signals into equivalent digital words. It is fully compatible with all versions of the Siemens 545 and 555 PLCs.

Features

Replaces Siemens® 505-6108-A and 505-6108-B with no rewiring

8 analog input channels

Isolated 140Vrms channel-channel

Isolated 1500V channel-to-PLC backplane

Supports 16-bit and 13-bit resolution

0-5V, 0-10V, 0-20mA, 4-20mA, unipolar or bipolar inputs, selectable per channel

Fast 5 mSec update time for all 8 channels

No external power supply or current resistor required for module

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

Specifications

Classic

Input channels: 8 analog input channels

Signal  Range:

Unipolar: 0 to 5 VDC, 0 to 10 VDC, or 0 to 20 mA

Bipolar: -5 to +5 VDC, -10 to +10 VDC, or –20 to

+20 mA

Description

The 2558 is an 8-channel analog input module

designed to be compatible with the SIMATIC®

505 series I/O base. The 2558 translates analog

input signals into equivalent digital words. The

2558 is fully compatible with CTI’s 2500 Series

CPUs and all versions of the SIMATIC®  545 and

555 PLCs.

Features

• SIMATIC®  505 base format

• 8 analog input channels

• 140Vrms isolation between channels

• 1500V channel-to-PLC backplane isolation

• Supports 16-bit and 13-bit resolution

• Fast 5 mSec update time for all 8 channels

• No external power supply required for module

• No external current resistor required

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

• Single-wide module

Control Technology Inc.

5734 Middlebrook Pike, Knoxville, TN 37921-5962

Phone: +1.865.584.0440    Fax: +1.865.584.5720

www.controltechnology.com

Update Time: 8 WX mode; 5 mSec all channels

Digital Filtering Time Constant: 0.3 Sec

DC Input Resistance:

Voltage mode:   780kΩ

Current mode:   250Ω

Repeatability: 0.0025%

Accuracy:

Voltage mode: 0.125% of full scale from

0° to 60° C

Current mode:  0.225% of full scale from

0° to 60° C

Resolution 8 WX Mode:

Unipolar 15 bits plus sign:

0 - 5 VDC range =  156µV/step

0 - 10 VDC range = 312µV/step

0 - 20 mA range = .625µA/step

Bipolar 15 bits plus sign:  -5 to +5 VDC range =  156µV/step  -10 to +10 VDC range = 312µV/step  -20 to +20 mA range = .625µA/step

Common Mode Rejection:

>120db @ 60 Hz (digital filtering disabled)

Normal Mode Rejection:

>40db @ 500 Hz (digital filtering enabled)

Connector: Removable (requires 2500-40F)

Wire Gauge: 14-22 AWG

Backplane Power: 3 Watts (maximum)

Module Size: Single wide

Input Protection:

Input ESD Protection: 20.000 V, IEC 1000-4-2.

Level 4

Overrange Protection: +/- 300 VDC

Isolation: 1500 VDC channel-to-PLC

Shipping Weight: 1.5 lb (0.68 Kg)