Re: Protocol format issues in StreamDevice during COMBIVAC CM 52 device commissioning.

[Marco Filho via Tech-talk <tech-talk@aps.anl.gov>]

Hi!

According to the combivac protocol manual, you are receiving an error code telling you that you sent an incorrect parameter:

I can't see the output you sent from here, but this might be a misformatting in the "out" directive in the protocol?
I will read more on the manual and see what it expects.

Cheers,

Marco

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From: Tech-talk <tech-talk-bounces@aps.anl.gov> on behalf of LONG FENG via Tech-talk <tech-talk@aps.anl.gov>
Sent: Wednesday, December 10, 2025 12:18
To: tech-talk@aps.anl.gov <tech-talk@aps.anl.gov>
Subject: Protocol format issues in StreamDevice during COMBIVAC CM 52 device commissioning.

 

Hi all，

In the communication protocol of the COMBIVAC CM 52, there is a specification as follows:

S: RPV[a]<CR>
E: b[,][TAB]x.xxxxE±xx

Here, a represents the channel number .1 = Channel 1 ,2 = Channel 2 ,3 = Channel 3 (The values 1, 2, and 3 are character digits).b represents the status.
I want to use StreamDevice to read data. The contents of my .db file are as follows:

record(mbbo, "$(P)$(R):Channel")

{
    field(DESC, "Select Channel")
    field(ZRVL, "49")
    field(ZRST, "Channel 1")
    field(ONVL, "50")
    field(ONST, "Channel 2")
    field(TWVL, "51")
    field(TWST, "Channel 3")
    field(VAL, "51")
    field(PINI, "YES")
    field(FLNK, "$(P)$(R):RPV")
}

record(ai, "$(P)$(R):RPV")
{
    field(DESC, "Reading pressure")
    field(DTYP, "stream")
    field(INP, "@test.proto readPressure($(P)$(R)) $(PORT)")
    field(SCAN, "1 second")
    field(FLNK, "$(P)$(R):Status")
}

record(mbbi, "$(P)$(R):Status")
{
    field(DESC, "status of channel")
    field(ZRVL, "0")
    field(ZRST, "OK")
    field(ONVL, "1")
    field(ONST, "BelowRange")
    field(TWVL, "2")
    field(TWST, "AboveRange")
    field(THVL, "3")
    field(THST, "ErrLo")
    field(FRVL, "4")
    field(FRST, "ErrHi")
    field(FVVL, "5")
    field(FVST, "SensorOff")
    field(SXVL, "6")
    field(SXST, "HVon")
    field(SVVL, "7")
    field(SVST, "SensorErr")
    field(EIVL, "9")
    field(EIST, "NoSensor")
    field(TEVL, "10")
    field(TEST, "NoTrig")
    field(TVVL, "12")
    field(TVST, "ErrPi")
    field(FFVL, "15")
    field(FFST, "OkDegas")
}

The contents of my .proto file are as follows：

OutTerminator = CR;

InTerminator = CR;

readPressure{
    out "RPV%(\$1:Channel)c?";
    in  "%(\$1:Status)d,\t%g";
}

readVersion{
    out "RVN";
    in  "%f";
}

 However, the following error occurs:
 

 2025/12/10 05:47:36.646640 Combivac1 Emission:fl:RPV: Input "?<09>P,<09>1" does not match format "%d"
2025/12/10 05:47:37.646725 Combivac1 Emission:fl:RPV: Input "?<09>P,<09>1" does not match format "%d"
2025/12/10 05:47:38.646532 Combivac1 Emission:fl:RPV: Input "?<09>P,<09>1" does not match format "%d"
2025/12/10 05:47:39.644943 Combivac1 Emission:fl:RPV: Input "?<09>P,<09>1" does not match format "%d"

What is the cause of this? Am I doing something wrong?Please help.
 

Feng