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5 digital input and outputs, 6 analog inputs – Watlow 8PID Controller User Manual

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Example:

Command: T1R00090CR

sets cycle time to about 5 seconds

Response: TR00090CRLF

cycle time is about 5 seconds

To query the cycle time:

T1RQCR

7.5 DIGITAL INPUT AND OUTPUTS

To set the digital outputs and query the digital outputs and digital input:

M(a)(b)

M is the digital input output command
a is the I/O number as follows:

1 is output 1

2 is output 2

3 is input only, b must = Q

b is the command as follows:

O is output on (1&2 only)

F is output off (1&2 only)

Q is status query

Example:

Command: M1OCR

turn on output 1

Response: M1OCRLF

output 1 is on

Example:

Command: M1QCR

check status of output 1

Response: M1OCRLF

output 1 is on

Example:

Command: M3OCR

incorrect command digital input cannot be set

Response: .CRLF

response to incorrect command

7.6 ANALOG INPUTS

To read the analog input one input at a time

S(n)CR

S is the scan command
n is the loop number

The response is in degrees F for thermocouple inputs with resolution to 0.1 F. For all
other inputs on the millivolt scale the response is in percent of full scale with resolution
of 0.01%. A plus or minus sign follows the loop number.