Rockwell Automation 1771-TCM,D17716.5.108 TEMPERATURE CONTROL MOD - Manual (Page 52)

Monitoring Status Data
Chapter 7
7-2
The system status block contains 64 words as follows:
Word Bits Description
1 0-15 Block Identification Code Ċ 1000 1000 1111 1111 (88FF
16
)
2 0 LoopĆ1 Enable
• 0 = Loop 1 disabled.
• 1 = Loop 1 enabled.
1 LoopĆ1 Auto/Manual Mode Select Ċ (controlled by bit 1 of word 2 of the dynamic block)
• 0 = Loop 1 is in the manual mode Ċ the manual output value (from word 5, dynamic block) is used as the CV value.
• 1 = Loop 1 is in the automatic mode Ċ the PID algorithm generates the CV value.
2 LoopĆ1 Open Circuit
• 0 = LoopĆ1 thermocouple circuit is closed (connection OK).
• 1 = .LoopĆ1 thermocouple circuit is open (connection broken).
3 LoopĆ1 Parameters valid
• 0 = Power has been interrupted since valid parameters for loop 1 have been blockĆtransferred.
• 1 = Valid parameters for loop 1 have been blockĆtransferred since last loss of power .
4 LoopĆ1 Calibration Fault
• 0 = LoopĆ1 calibration is OK.
• 1 = LoopĆ1 cannot operate with as calibrated.
5 LoopĆ1 SetĆPoint Select Ċ (controlled by bit 2 of word 2 of the dynamic block)
• 0 = Select the standbyĆtemperature setĆpoint value from word 3 of the dynamic block.
• 1 = Select the runĆtemperature setĆpoint value from word 4 of the dynamic block.
6 LoopĆ1 Parameter Value Error
• 0 = LoopĆ1 parameter values OK.
• 1 = LoopĆ1 parameter value error.
7 LoopĆ1 AutoĆTuning Complete
• 0 = LoopĆ1 autoĆtuning is not complete.
• 1 = LoopĆ1 autoĆtuning is complete.
8 Reserved.
9 Reserved.
10 LoopĆ1 Thermal Runaway Ċ (set in words 21 and 23 of the configuration block)
• 0 = LoopĆ1 is operating within thermal runaway limit..
• 1 = LoopĆ1 has exceeded the thermal runaway limit. and the CV value has been forced..
11 LoopĆ1 High CV Limit Ċ (set in word 7 of the configuration block)
• 0 = LoopĆ1 CV value is below the high CV limit.
• 1 = LoopĆ1 CV value is at the high CV limit.
12 LoopĆ1 Low CV Limit Ċ (set in word 8 of the configuration block)
• 0 = LoopĆ1 CV value is above the low CV limit.
• 1 = LoopĆ1 CV value is at the low CV limit.
System Status Block