Flowserve 3400IQ Digital Positioner User Manual
Page 108

Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
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3. Write-locking is active. Resource block
parameter WRITE_LOCK value is 2.
3. Remove write protect jumper (see
Subsection 6.5)
4. Corresponding block is in the wrong
mode. Some parameters can only be
written to in OOS mode only, or in OOS or
manual modes.
4. Write valid mode to MODE_BLK
parameter of block (OOS or MAN
modes). See Mode Restricted Writes
to Parameters in Sub-sections 8.6
and 8.7.
5. Data written to the parameter is out of the
valid range for that parameter.
5. Write valid range values to
parameter.
6. Subindex used is invalid for that
parameter
6. Enter valid subindex for parameter.
Unable to change
resource block to
auto mode
1. The second element of BLOCK_TEST is
not zero.
1. Write all zeroes to the second
element of the BLOCK_TEST
parameter.
2. Resource block is in OOS mode.
2. Write auto mode to MODE_BLK.
TARGET of the resource block.
3. The second element of BLOCK_TEST is
non-zero.
3. Write all zeroes to the second
element of the BLOCK_TEST
parameter.
4. A configuration error occurred in the
block.
4. Find and correct any configurable
parameter outside its valid range. See
Clearing Block Configuration Errors
in Sub-section 10.6.
Unable to change
analog output block
from OOS mode
1. The block has not been configured to
execute. It is neither in the function block
schedule in the system management
information base, nor is it linked to another
executing block via the next block to execute
field in the block record (relative parameter
index).
1. Build and download an execution
schedule for the block including links
to and from AO block with other
function blocks.
2. Resource block is in OOS mode.
2. Write auto mode to MODE_BLK of
resource block.
3. Block configuration error.
3. a. Check the parameters SHED_OPT
and CHANNEL. All values must be
non-zero.
b. BLOCK_ERR for bit 1 set. If set,
check all configurable parameters
for possible invalid values. See
Clearing Block Configuration
Errors in Sub-section 10.6.
4. The second element of BLOCK_TEST is
not zero.
4. Write all zeroes to the second
element of the BLOCK_TEST
parameter.
AO block is in the
correct mode but
does not seem to be
operating
1. Simulation active.
1. Disable simulation. See Sub-section
10.8 for procedure.
2. The block has not been configured to
execute. It is neither in the function
block schedule in the system manage-
ment information base, nor is it linked
to another executing block via the next
block to execute field in the block record
(relative parameter index 0).
2. Build and download an execution
schedule for the block including links
to and from AO block with other
function blocks.
3. The second element of BLOCK_TEST is
not zero.
3. Write all zeroes to the second
element of the BLOCK_TEST
parameter.