Experimental Physics and
Industrial Control System

Dear all,

I have a request to raise the current limit of 80 chars on INP/OUT fields.
Some device supports (e.g. OPC, SNMP) use device-side names in that field to map signals, and names in those systems might be long.

Internally, these strings are stored in their natural length - it is just the code in dbPutString() (dbStaticLib.c 2029ff.) that sets and enforces the limit. However, having a limit makes sense to detect runaway strings (missing quotes etc.)

I see two easy feasible options:
  1. Statically raise the limit (e.g. to 256).
  2. Add an IOC variable, make the buffer static, and alloc it once (in the function).

What do you think?

Cheers,
~Ralph