Emerson RSTi-OM - IOLM Ports L+;L- and C;Q

RSTi-OM User Manual Section 5
GFK-3212A Jun 2021
Connecting Devices 49
The standard SDCI (IO-Link) transmission rates are supported:
• COM1 at 4.8Kbps
• COM2 at 38.4Kbps
• COM3 at 230.4Kbps
There are active over-current limiter electronics for each port in the IOLM that detects the
overload/short-circuit condition within a few milliseconds and shuts off the output power to protect
the port and the devices connected to it. The port’s power output self-recovers and restores to
normal immediately after the overload or short-circuit condition is removed.
The over-current limiter circuit for L+/L- pins are separate circuits from the over-current limiter circuit
for the C/Q output pin. When a port is affected by overload/short-circuit conditions, it does not affect
the operation of the other ports. All other ports will continue to operate normally without any glitch
or interruption. The current output capacity, cutoff current, and power-sharing/budgeting for L+/L-
and C/Q signal for the ports on the IOLM are as follows:
IOLM
L+/L-
C/Q
Port
Output
Current
Capacity
(max.)
Overload
Cutoff
Current
Short-
Circuit
Protection
Output
Current
Capacity
(max.)
Overload
Cutoff
Current
Short-
Circuit
Protection
Port 1:
Independent over-
current limiter
circuits/IC for L+/L-
and C/Q pins
1.6A
1.65A
Yes
200mA
400mA
Yes
Port 3:
Independent over-
current limiter
circuits/IC for L+/L-
and C/Q pins
1A
1.05A
Yes
200mA
400mA
Yes