From 9f40a89bae943094848430360ff81ac26c2442b2 Mon Sep 17 00:00:00 2001
From: soederqvist_a <alexander.soederqvist@psi.ch>
Date: Thu, 2 Apr 2026 13:26:44 +0200
Subject: [PATCH 1/2] PlugNPLay: autoconnect with disconnectOnReadtimeout
 working

---
 db/epluse.db    | 9 +++++++++
 db/epluse.proto | 9 ++++++---
 epluse.cmd      | 8 ++++++--
 3 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/db/epluse.db b/db/epluse.db
index 48fc690..17b260d 100644
--- a/db/epluse.db
+++ b/db/epluse.db
@@ -18,3 +18,12 @@ record(ai, "$(PREFIX):RELHUM")
    field(EGU, "%RH")
 }
 
+record(asyn,"$(PREFIX):ASYN")
+{
+    field(DTYP,"asynRecordDevice")
+    field(PORT,"$(PORT)")
+    field(ADDR,"-1")
+    field(TMOD, "NoI/O")
+    field(TMOT, -1.0)
+}
+
diff --git a/db/epluse.proto b/db/epluse.proto
index cbd26ac..cd2987c 100644
--- a/db/epluse.proto
+++ b/db/epluse.proto
@@ -3,8 +3,11 @@
 
 Terminator = '';
 ReplyTimeout = 3000;
+LockTimeout = 5000;
+ReadTimeout = 2000;
+MaxInput = 15;
 # Remove if we can fix the occasional null byte being sent
-ExtraInput = Ignore
+#ExtraInput = Ignore;
 
 # unsolicited weight message
 fetch_rht {
@@ -12,7 +15,7 @@ fetch_rht {
     # 3rd byte is command, fetch rht values
     # 4th byte length of message, 2 bytes
     # 5th and 6th byte, data. For this case it is 1
-    
+
     out 0x00 0x00 0x67 0x02 0x00 0x01 0x6a;
     # First 2 bytes is address
     # 0xca8b is the unit at neutra
@@ -27,5 +30,5 @@ fetch_rht {
     # I try to handle this with with ?*c command, but it doesn't work
     # Possibly check with Dirk sometime how to make this work, if possible
     # For now ignore extra data
-    in 0xca 0x8b 0x67 0x0A 0x06 0x00 "%(\$1:TEMP)#R%(\$1:RELHUM)#R%*c%*?1c";  
+    in 0xca 0x8b 0x67 0x0A 0x06 0x00 "%(\$1:TEMP)#R%(\$1:RELHUM)#R%<sum8>";
 }
diff --git a/epluse.cmd b/epluse.cmd
index 7783872..91927e4 100644
--- a/epluse.cmd
+++ b/epluse.cmd
@@ -7,6 +7,10 @@ require stream
 
 epicsEnvSet("PROTO", "$(epluse_DB)epluse.proto")
 
-drvAsynIPPortConfigure("$(INSTR)-sps", "$(MOXA_ADDR)",0,0,0)
+### We have autoconnect and disconnectOnReadTimeout enabled, so that it can come and go
+## without generating too much noise. We detect connected state via asyn record .CNCT
+# drvAsynIPPortConfigure(portName, hostInfo, priority, noAutoConnect, noProcessEos)
+drvAsynIPPortConfigure("$(INSTR)-epluse", "$(MOXA_ADDR)",0,0,0)
+asynSetOption("$(INSTR)-epluse", -1, "disconnectOnReadTimeout", "Y")
 
-dbLoadRecords("$(epluse_DB)epluse.db", "PREFIX=SQ:$(INSTR), PROTO=$(PROTO), PORT=$(INSTR)-sps")
+dbLoadRecords("$(epluse_DB)epluse.db", "PREFIX=SQ:$(INSTR), PROTO=$(PROTO), PORT=$(INSTR)-epluse")
-- 
2.52.0


From 3d40f435408d321e57bb2089366f3032e4c3903d Mon Sep 17 00:00:00 2001
From: soederqvist_a <alexander.soederqvist@psi.ch>
Date: Thu, 16 Apr 2026 08:24:39 +0200
Subject: [PATCH 2/2] Status propagation and checksum

---
 db/epluse.db    | 15 ++++++++++++---
 db/epluse.proto |  2 +-
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/db/epluse.db b/db/epluse.db
index 17b260d..23c396d 100644
--- a/db/epluse.db
+++ b/db/epluse.db
@@ -1,20 +1,29 @@
-record(bo, "$(PREFIX):FETCH")
+record(calcout, "$(PREFIX):FETCH")
 {
    field(DTYP, "stream")
    field(DESC, "Initialization parameters")
-   field(OUT,"@$(PROTO) fetch_rht($(PREFIX)) $(PORT) 0")
-   field(SCAN,"1 second")
+   field(CALC, "0")
+   field(OUT,  "@$(PROTO) fetch_rht($(PREFIX)) $(PORT) 0")
+   field(SCAN, "1 second")
+   field(FLNK, "$(PREFIX):FANOUT")
+}
+
+record(fanout, "$(PREFIX):FANOUT") {
+   field(LNK1, "$(PREFIX):TEMP")
+   field(LNK2, "$(PREFIX):RELHUM")
 }
 
 record(ai, "$(PREFIX):TEMP")
 {
    field(DESC, "Temperature")
+   field(INP, "$(PREFIX):FETCH.A NPP MS")
    field(EGU, "degC")
 }
 
 record(ai, "$(PREFIX):RELHUM")
 {
    field(DESC, "Relative Humidity")
+   field(INP, "$(PREFIX):FETCH.B NPP MS")
    field(EGU, "%RH")
 }
 
diff --git a/db/epluse.proto b/db/epluse.proto
index cd2987c..2cb901d 100644
--- a/db/epluse.proto
+++ b/db/epluse.proto
@@ -30,5 +30,5 @@ fetch_rht {
     # I try to handle this with with ?*c command, but it doesn't work
     # Possibly check with Dirk sometime how to make this work, if possible
     # For now ignore extra data
-    in 0xca 0x8b 0x67 0x0A 0x06 0x00 "%(\$1:TEMP)#R%(\$1:RELHUM)#R%<sum8>";
+    in 0xca 0x8b 0x67 0x0A 0x06 0x00 "%(A)#R%(B)#R%<sum8>";
 }
-- 
2.52.0