Fisher FIELDVUEDVC6200f Instruction Manual page 306

DVC6200f Digital Valve Controller
DO Function Block
February 2017
Block Errors
Table E‐34 lists conditions reported in the BLOCK_ERR [6] parameter.
Table E‐34. DO BLOCK_ERR Conditions
Condition Number
1 Block Configuration Error ‐ SHED_OPT or CHANNEL set to 0 (uninitialized)
3 Simulate active ‐ Simulation is enabled and the block is using a simulated value in its execution.
4 Local Override ‐ Device in fault state. Actual mode LO.
Device Fault State Set ‐ DO block in fault state after FSTATE_TIME because of Bad status or IFS substatus on CAS_IN_D or Resource
5
block commanded fault state.
Device Needs Maintenance Soon ‐ Indicates a Maintenance Field Diagnostic Alert condition is active if Block Error Reporting is enabled.
6
See page 67.
Input failure/process variable has Bad status ‐ PV has bad status and Feature Select in the Resource block has the Out Readback bit set
7
or the transducer block mode is Out of Service.
8 Output failure ‐ PV has bad status or the transducer block mode is Out of Service.
Device Needs Maintenance Now ‐ Indicates Failed Field Diagnostic Alert condition is active if Block Error Reporting is enabled.
13
See page 67.
14 Power Up ‐ This condition exists after power up until actual mode is not Out of Service.
15 Out of Service ‐ The block is in Out of Service (OOS) mode.
Action on Fault Detection
Fault State is caused by one of three sources: A status pertaining to CAS, A status pertaining to RCAS, or SET_FSTATE
[29] in the resource block. To implement Fault State, configure the following parameters:
IO_OPTS [14]: Determines the action OUT_D [9] will take upon a fault state. If the IO_OPTS [14] "Fault State to Value"
is not selected, then OUT_D [9] holds its last position when Fault State is set. If "Fault State to Value" is selected,
OUT_D [9] goes to the FSTATE_VAL_D [20] value when Fault State is set.
FSTATE_TIME [19]: The length of time, in seconds, that the DO block will wait to set Fault State. When Fault State is
set, the OUT_D [9] value goes to either the FSTATE_VAL_D [20] value or holds its last position, depending on
I/O_OPTS [14]. When the block has a target mode of CAS, a fault condition will be detected if the CAS_IN_D [17] has a
BAD status or an Initiate Fault State substatus is received from the upstream block.
FSTATE_VAL_D [20]: Determines the OUT_D [9] value if IO_OPTS [14] "Fault State to Value" is selected. The OUT_D
[9] value transitions to FSTATE_VAL_D [20] after FSTATE_TIME [19] elapses and the fault condition has not cleared.
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Condition Name and Description
Instruction Manual
D103412X012