diff --git a/supervisor/session/plc.lua b/supervisor/session/plc.lua
index b1e62a8..473e5b1 100644
--- a/supervisor/session/plc.lua
+++ b/supervisor/session/plc.lua
@@ -409,7 +409,7 @@ function plc.new_session(id, for_reactor, in_queue, out_queue)
                 end
             elseif pkt.type == RPLC_TYPES.RPS_ALARM then
                 -- RPS alarm
-                if pkt.length == 11 then
+                if pkt.length == 13 then
                     self.sDB.rps_tripped = true
                     self.sDB.rps_trip_cause = pkt.data[1]
                     local status = pcall(_copy_rps_status, { table.unpack(pkt.data, 2, pkt.length) })
diff --git a/supervisor/startup.lua b/supervisor/startup.lua
index 70d723a..0f1a4be 100644
--- a/supervisor/startup.lua
+++ b/supervisor/startup.lua
@@ -13,7 +13,7 @@ local svsessions = require("supervisor.session.svsessions")
 local config     = require("supervisor.config")
 local supervisor = require("supervisor.supervisor")
 
-local SUPERVISOR_VERSION = "beta-v0.7.2"
+local SUPERVISOR_VERSION = "beta-v0.7.3"
 
 local print = util.print
 local println = util.println