OPC90 Server
code are translated to t
Bailey function code
ck modifica
ation is
the WRI
also
g is zero the request was successful, non-zero indicates an error occurred.
f
to
block to be deleted.
ee section 7.3.1 to understand how to read a block. The second step is to
request the block deletion by setting the DELETE tag to a value of TRUE.
ompletion of the delete is flagged when the DELETE tag is reset to FALSE.
red.
n
lated activities using simple text commands. The client sends the text
resents an overview of the supported commands:
he correct data types required for the
and the blo
tion occurs. Completion of the modification oper
flagged when
TE tag is reset to FALSE. The MESSAGE tag will
return a text message
reason for failure if the modification
indicating completion of the modification operation or the
cannot be completed. When the ACKNAK
ta
7.3.7 Deleting Bailey Controller Blocks
To delete a Bailey function block, the controller must be in the configure mode o
operation. See section 7.3.4 to understand how to change Bailey controller
modes of operation. There are two easy steps an OPC client must follow
delete a Bailey function block. First it must read the function
S
C
The MESSAGE tag will also return a text message indicating completion of the
delete operation or the reason for failure if the deletion cannot be completed.
When the ACKNAK tag is zero the request was successful, non-zero indicates an
error occur
7.3.8 Configuration Command Processing
The COMMAND tag allows the client to perform a variety of Bailey configuratio
re
command to the COMMAND tag. It can monitor completion of the requested
command using the COMMAND_ACT tag. The MESSAGE tag will contain a text
message showing the result of the command when it has finished. The following
table p
Command Arguments
Description
OPERATION
RESET or 1 or CONFIGURE or 2 or
EXECUTE or 3 or INITIALIZE or 4
<RING> <NODE> <MODULE>
Changes a Bailey controller mode
of operation.
SAVE
<FILE_NAME> <RING> <NODE>
<MODULE>
Saves a Bailey controller
configuration to a file.
LOAD
<FILE_NAME> <RING> <NODE>
<MODULE>
Restores a Bailey controller
configuration from a file.
CANCEL
none
Cancels the currently active
command.
READ
<BLOCK> <RING> <NODE>
<MODULE>
Reads a function block configured
in a Bailey controller.
GET
<FUNCTION_CODE> <BLOCK>
<RING> <NODE
Gets the default specifications for a
> <MODULE>
Bailey controller function code.
WRITE
<START_BLOCK>
<NUMBER_BLOCKS>
<BLOCK_INCREMENT> <RING>
<NODE> <MODULE>
controller.
Writes a function block to a Bailey
MODIFY
<START_BLOCK>
<NUMBER_BLOCKS>
<BLOCK_INCREMENT> <RING>
<NODE> <MODULE>
Modifies an existing function block
within a Bailey controller.
DELETE
<START_BLOCK> <END_BLOCK>
Deletes one or more blocks within
The RoviSys Company
Version 7.0
Page 48