Open Platform Communications (OPC) table details
- Last UpdatedApr 24, 2025
- 1 minute read
The opc table is used by the Open Platform Communications (OPC) protocol. The records in the opc table are used to configure protocol-specific aspects of the query and response cycle between the primary station and the remotes. The opc table contains the following internal fields:
|
Internal Field Name |
Data Type |
Description |
|---|---|---|
|
accessFlag |
displayname |
Access flag. |
|
autoUpdate |
oas_boolean_t |
Automatically perform an init when the group definition changes? |
|
dataset |
doas_dset_slot |
Associated dataset. |
|
debug |
unsigned int |
Debug. |
|
group |
groupslot |
Group of responsibility. |
|
heartbeat |
unsigned int |
Open Platform Communications (OPC) heartbeat. |
|
host |
OPC_HOST |
OPC host name. |
|
name |
pntname |
OPC remote name. |
|
opcGroup.OPC_GROUP[0-20].active |
oas_boolean_t |
Active group. |
|
opcGroup.OPC_GROUP[0-20].enable |
oas_boolean_t |
Enable group. |
|
opcGroup.OPC_GROUP[0-20].integrityUpdate |
oas_boolean_t |
Integrity update. |
|
opcGroup.OPC_GROUP[0-20].updateRate |
unsigned char |
Update rate in milliseconds. |
|
ptnum |
integer |
Slot number in database. |
|
server |
OPC_SERVER |
OPC server name. |