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)