IOLAN SDS/SCS/STS/MDC User’s Guide
280
Configuring I/O
Interfaces
Chapter 10
10
Introduction
There is a line of IOLANs that can control/monitor the following types
of I/O:
z
Analog Input
z
Digital Input/Output
z
Relay Output
z
Temperature Input
Some of the models are I/O combinations and some of the models support one I/O type, although all
of the SDS I/O models are extensions of the feature rich SDS IOLAN.
Technical Specifications
Digital I/O
z
2 or 4 channels depending on model
z
software selectable as inputs or outputs
z
optical isolation of 2000V rms
Digital Input
z
Dry Contact: Logic 0 = open. Logic 1 = close to GND
z
Wet Contact: Logic 0 = 0-3VDC. Logic 1 = 10V-30VDC
Digital Output
z
Open collector to 30VDC (source, sink or both)
z
200mA max load
z
Digital out (DO) or pulse mode
Relay
z
Form C type SPDT
z
Contact rating: 1A@30VDC, 0.5A@AC: 120VAC
z
Breakdown voltage: 500 VAC (50/60 Hz)
z
Relay on time: 7 msec. Relay off time 3 msec
z
Total switching time: 10 msec
z
Insulation resistance: 1000 MW minimum at 500 VDC
