Asys Function Block; Table 2-9 Analog System Status Block Outputs - Honeywell UMC800 Reference Manual

2.12 ASYS Function Block

Description
The Analog System Status Block (ASYS) is a function block and is part of the Alarm/Monitor category. It
provides read access to controller status values including those related to the Analog execution cycle. The
output may be connected to function block inputs. The outputs may also be connected to signal tags for
operator interface monitoring. The ASYS System Monitoring block is assigned block number 249. It looks
like this graphically on the Control Builder:
Table 2-9 describes the outputs for the Analog system status block.

Table 2-9 Analog System Status Block Outputs

Output
CYCTIME Control Block Cycle Time in seconds
CYCMINS Control Block Cycle Time in minutes
NEWSTART Newstart is ON for one full cycle of control block execution, following a New
start of the system. For example: starting after a change from program to run.
RESTART Restart is ON for one full cycle of control block execution, following power up.
ALM ACTIV Alarm Active is ON if any operator panel alarm is ON.
ALMUNACK Alarm unacknowledge is ON if any operator panel's alarm is unacknowledged.
HWOK Hardware OK is ON if there are no faults.
LOWBTRY Low Battery is ON if the battery is low, Off when battery is good.
HI TEMP High CJ Temperature is ON if the CJ temperature is high.
COMFAIL Communications Failure is ON if there is a failure to the operator interface.
BAD BLOCK Bad Block is ON when one or more blocks are not operating properly.
OFF LINE On when Controller Mode switch is in Off Line mode.
TIME OFF Number of seconds power was turned off. Valid for one cycle of control blocks
execution following power up. Then it is cleared to zero.
3/99
Analog function block scan cycle time in sec.
Analog function block scan cycle time in min.
Logic 1 (Hi) for one analog scan cycle after a new start of program (Program to Run)
Logic 1 (Hi) for one analog scan cycle after power up
Logic 1 (Hi) if there is any operator panel alarm is present
Logic 1 (Hi) if there is any operator panel unacknowledged alarm present
Logic 1 (Hi) if a hardware fault is detected
Logic 1 (Hi) if battery is low
Logic 1 (Hi) if internal temperature is too high (>70C)
Logic 1 (Hi) if there is a comm. failure to the operator interface
Logic 1 (Hi) if a function block fails to operate properly
Logic 1 (Hi) when the controller mode switch is in the Off Line mode
Time controller was off (in sec.) after power loss (available for one analog scan cycle)
Description
Function Block Reference Guide
Function Blocks
37