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#559 discard modbus messages if busy

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This commit is contained in:
Mikayla Fischler 2025-01-08 19:04:38 -05:00
parent 11fa9f625d
commit 1190fe2dd5
2 changed files with 6 additions and 8 deletions
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12
rtu/rtu.lua
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@ -481,16 +481,14 @@ function rtu.comms(version, nic, conn_watchdog)
-- check validity then pass off to unit comms thread
return_code, reply = unit.modbus_io.check_request(packet)
if return_code then
-- check if there are more than 3 active transactions
-- still queue the packet, but this may indicate a problem
-- check if there are more than 3 active transactions, which will be treated as busy
if unit.pkt_queue.length() > 3 then
reply = modbus.reply__srv_device_busy(packet)
log.debug("queueing new request with " .. unit.pkt_queue.length() ..
" transactions already in the queue" .. unit_dbg_tag)
end
-- always queue the command even if busy
log.warning("device busy, discarding new request" .. unit_dbg_tag)
else
-- queue the command if not busy
unit.pkt_queue.push_packet(packet)
end
else
log.warning("cannot perform requested MODBUS operation" .. unit_dbg_tag)
end

2
rtu/startup.lua
View File

@ -31,7 +31,7 @@ local sna_rtu = require("rtu.dev.sna_rtu")
local sps_rtu = require("rtu.dev.sps_rtu")
local turbinev_rtu = require("rtu.dev.turbinev_rtu")
local RTU_VERSION = "v1.10.21"
local RTU_VERSION = "v1.11.0"
local RTU_UNIT_TYPE = types.RTU_UNIT_TYPE
local RTU_HW_STATE = databus.RTU_HW_STATE