Flowserve 400MD Logix User Manual

Page 85

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Table 10.7 Summary of Configuration Errors

Problem/Fault

Probable Cause

Recommended Action

Name of parameters are not

visible

Missing or incorrect version of device

description file on host computer.

1. Check path to device description.
2. Load correct version of DD.

Unable to write successfully

to MODE_BLK of any block.

Mode not supported in TARGET and/or

PERMITTED modes for the given block.

• Verify that the mode being written is supported by the block.
• If writing TARGET mode only, then the desired mode must already be set in

the PERMITTED field.

• If writing the whole MODE_BLK record, then the mode set in TARGET must

also be set in the PERMITTED field. Other modes may also be set in the

PERMITTED field, but target mode must be set.

Unable to write to a

parameter

1. Parameter is read-only.

1. None

2. Sub-index of the parameter is read-only.

Some parameters have fields that are not

writable individually (such as MODE_BLK.

ACTUAL).

2. None

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.

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.

Logix 3400MD Digital Positioner LGENIM3405-02 11/13

85

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