IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.5 261
Configuring I/O Interfaces Chapter 10
10
Introduction
There is a line of IOLANs that can control/monitor the following types
of I/O:
zAnalog Input
zDigital Input/Output
zRelay Output
zTemperature 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
z2 or 4 channels depending on model
zsoftware selectable as inputs or outputs
zoptical isolation of 2000V rms
Digital Input
zDry Contact: Logic 0 = open. Logic 1 = close to GND
zWet Contact: Logic 0 = 0-3V. Logic 1 = 10V-30V
Digital Output
zOpen collector to 30V (source, sink or both)
z200mA max load
zDigital out (DO) or pulse mode
Relay
zForm C type SPDT
zContact rating: 1A@30VDC, 0.5A@AC: 120VAC
zBreakdown voltage: 500 VAC (50/60 Hz)
zRelay on time: 7 msec. Relay off time 3 msec
zTotal switching time: 10 msec
zInsulation resistance: 1000 MW minimum at 500 VDC