Bug #14805
erl-modbus device occasionally see long delays
Status:
Assigned
Priority:
Normal
Assignee:
Category:
MODBUS Driver
Target version:
Start date:
12/12/2016
Due date:
% Done:
0%
Estimated time:
Description
Jerry reports that his MODBUS devices, which typically respond within 1/4 sec, occasionally take 2.5 seconds to reply. He says it happens once an hour. He worked with the developer of the target hardware and they didn't see the hardware respond that slowly. It appear it's being done in the front-end. Rich used Wombat to view many parameters and nothing seems to match Jerry's description.
It would be interesting to compare with other MODBUS devices to see if it's occurring everywhere. Jerry says he has another MODBUS device that responds ~2mS, but once an hour it takes 25mS.
Related issues
History
#1 Updated by Richard Neswold almost 3 years ago
- Related to Bug #16222: modbus front-ends show over 1s delay in reading response since 2/28/17, possibly correlated with bigsave added
#3 Updated by Richard Neswold about 1 year ago
- Target version set to dev-modbus v1.1