Experimental Physics and
Industrial Control System

"Darrell Nineham" <[email protected]> · Tue, 7 Feb 2006 12:06:43 -0000

Hi Evgeniy Tikhomolov and Fellow Tech-Talkers,

Concerning the Hytec 2992 Question, please find an answer from the
unit's present technical authority here at Hytec.

Darrell Nineham
Hytec Electronics Ltd.
Tel: +44 (0) 118 975 7770
Fax: +44 (0) 118 975 7566
Web: www.hytec-electronics.co.uk

++++++++++++++++++++++++++++++++++++++++++++
This email and any files transmitted with it are confidential and
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Electronics Ltd.

-----Original Message-----
From: Peter Marshall [mailto:[email protected]] 
Sent: 06 February 2006 17:12
To: 'Darrell Nineham'
Subject: RE: Two Hytec VSD 2992 CAMAC serial highway driver in one VME
crate

Dear Darrell,
Please send this reply back to TechTalk:

I believe there is a standard setting in the 2992 code where you select
one of two or more 2992 cards in a crate, for example:

    int extsw;          /* Camac Address of Switch Card */
    int extled;         /* Camac Address of LED Card */
    int f0=0;           /* Camac Code for Read*/
    int f16=16;         /* Camac Code for Write */
    int q;              /* Camac Q Response Storage */
    int data,data2;     /* Camac Data Storage */
    float MsgCount;     /* Message Count */
    float ErrorCount;   /* Error Count */
    int branch=0;       /* Which Camac Branch */
    int crate=1;        /* Which Camac Crate */
    int swslot=15;      /* Switch Station / Card Crate Slot */
    int ledslot=4;      /* LED Station / Card Crate Slot */
    int subadd=0;       /* Camac Sub-Address */
    int k;      

I am sure there are others in TechTalk who can tell you how to set it
up, but the base address setting of the 2992 is related to the 'branch'
shown above. Basically, the 'branch' tells the software what base
address to use when addressing the CAMAC. I hope this helps.

Best regards,

Peter Marshall, Hytec Electronics Ltd.

5 Cradock Road, Reading, RG2 0JT, UK.

Tel: +44(0)118 975 7770; Fax: +44(0)118 975 7566.

email: [email protected]; web: www.hytec-electronics.co.uk 

++++++++++++++++++++++++++++++++++++++++++++

This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they are
addressed.

If you have received this email in error, please notify the sender
immediately. The views expressed in the message are those of the
individual author and may not necessarily represent the views of Hytec
Electronics Ltd.

-----Original Message-----
From: Evgeniy Tikhomolov [mailto:[email protected]] 
Sent: 06 February 2006 16:38
To: [email protected]
Subject: Two Hytec VSD 2992 CAMAC serial highway driver in one VME crate

We split our EPICS/CAMAC system into two loops.

Does anybody have experience with two Hytec VSD 2992 CAMAC serial 
highway drivers in one VME crate working with two MV162 in two different

address spaces? Any problems? Can we save money by not buying second VME

crate?

Evgeniy,
TRIUMF

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System