Output Signals; Serial Communications; Serial Requirements - Process Sensors MCT Series Installation And Operation Manual

10.0 Output Signals

The MCT has the following signal interfaces available for connection to other devices.
Analog Outputs:
Hold/Gated Input: Facility for a contact closure input indicating a gap in the stream of product on the

10.1 Serial Communications

The Sensor provides a choice of serial output formats, RS232 and RS485.
RS232 is suitable for a single sensor to computer connection over a distance of up to 100 feet (30
meters).
RS485 is suitable for connection of up to 16 sensors on a cable up to 3 miles (4.86Km) long.

10.1.1 Serial Requirements

1. RS232/485:
2. Cables:
Three 0–10 volts isolated.
Three 4-20mA isolated.
Load resistance 500 ohms Max.
conveyor. When activated the sensors display and analog output signals will be
"frozen" for the time the hold input is active.
Baud Rate: 300 to 38400 (9600 default)
Parity: None
Data Bits: 8
Stop Bits: 1
RS 232: 9 pin 'D' serial cable wired pin to pin
RS 485: Shielded twisted pair.
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