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M1550 PLC
The M1550 is a fth-generation Micro-Comm controller similar to the M1500 PLC, but with a
faster processor, more memory, ethernet port and an additional COM4 port.
I/O capabilities:
(4) Form C Relay Outputs
(4) Open-collector outputs (COM1 pins used for radio switching)
(8) Discrete inputs (contact closure), (2) high speed pulse, (6) low speed pulse
(4) Analog Inputs (12bit, 0-20mA or 0-5volt dip switch selectable)
(2) Additional 12bit analog inputs, Temperature, System Voltage
(2) Analog Outputs (0-20mA)
(3) RS-232 / RS-485 communication ports
- COM1 25pin port for radio cable
- COM2 9pin port normally used for the display module and programming
- COM4 9pin port RS-232/RS-485
(1) Ethernet 10/100baseT (RJ-45) port
(1) RS-485 communication port
- COM3 is a 4-wire RS-485 port for I/O modules or PLC communication
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