Experimental Physics and
Industrial Control System

Noboru Yamamoto <[email protected]> · Tue, 8 Jul 1997 00:19:33 +0900

Dear All,

Does anyone use SGL encoder with CAMAC serial crate controller in 
EPICS environment? 

 We use camacLib.c from LANL in EPICS. We use Hytec CAMAC serial 
highway driver and L-2 CAMAC Crate controller equipped with a SGL encoder.
On SGL encoder, you can patch 24 LAM signals to create SGL code ( 5 bits).
 SGL code is sent to the serial highway driver as a part of a demand message 
when LAM is activated. 
 camacLib.c, as I understand, uses SGL code as a slot number and clear LAM 
on the slot where SGL code indicate.
 Since you can program SGL encoder as you like, the slot number of the 
module in LAM status may diffrent from the number SGL code indicate, however.

So, I'm wondering if anyone in EPICS collaboration other than us uses a SGL
encoder and how they maps SGL code to the slot number which is in LAM status.

Thank you,

Noboru
KEK, KEKB control group
JAPAN

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System