What to do next – Rockwell Automation 1771-TCM,D17716.5.108 TEMPERATURE CONTROL MOD User Manual
Page 50
Chapter 6
Operating the Module
6-7
Word Description
Bits
30
0
LoopĆ8 Enable
•
0 = Loop 8 disabled.
•
1 = Loop 8 enabled if PID control mode selected (bits 7-8, word 2, config block).
1
LoopĆ8 Auto/Manual Mode Select
•
0 = Loop 8 is in the manual mode Ċ the manual output value (from word 33) is used as the CV value.
•
1 = Loop 8 is in the automatic mode Ċ the PID algorithm generates the CV value.
2
LoopĆ8 SetĆPoint Select
•
0 = Select the standbyĆtemperature setĆpoint value from word 31.
•
1 = Select the runĆtemperature setĆpoint value from word 32.
3
LoopĆ8 AutoĆTuning Enable
•
0 = Disable autoĆtuning.
•
1 = Enable autoĆtuning Ċ autoĆtuning can be invoked by an offĆtoĆon transition of bit 1 of word 34.
4
Always = 0.
5
LoopĆ8 PID Integral Term Reset Enable
•
0 = Accumulate PID integral term.
•
1 = Reset the PID integral term on the 0ĆtoĆ1 transition, and then allow accumulation until the next 0ĆtoĆ1 transition.
6-15
Always = 0.
31
0-15
LoopĆ8 Standby Temperature SetĆpoint Value Ċ Used when bit 2 of word 30 is off (0 thru 999.9
).
32
0-15
LoopĆ8 Run Temperature SetĆpoint Value Ċ Used when bit 2 of word 30 is on (0 thru 999.9
).
33
0-15
LoopĆ8 Manual Output Value (CV) Ċ Used when bit 1 of word 30 is off (-100.00 thru +100.00).
34
0
ReadĆBlock Select
•
0 = BlockĆtransfer read will return the system status block.
•
1 = BlockĆtransfer read will return the gains block.
1
Invoke AutoĆTuning
•
0 = Stop autoĆtuning.
•
1 = Invoke autoĆtuning of all loops with autoĆtuning enable bit turned on. (start only on a 0ĆtoĆ1 transition).
2
Always = 0.
3
ColdĆJunction Alarm Enable
•
0 = Disable alarm for temperature over and under limits.
•
1 = Enable alarm for temperature over the upper limit (70
C) and under the lower limit (0
C).
4
Celsius/Fahrenheit Select Ċ For all temperature values.
•
0 = Celsius
•
1 = Fahrenheit
5-15
Always = 0.30313233
To learn how to monitor the system status block of the temperature control
module, read chapter 7.
What to do next