HP E1418A Service Manual page 20

8/16-channel d/a converter
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20 Operating Information
The module configuration is obtained using the
DIAGnostic:CONFiguration? query.
/* Send query to the module*/
DIAG:CONF?
/* Enter six integers and decode the integers*/
The DIAG:CONF? query returns six integers. The six integers returned
contain the module configuration and have the following meaning.
Integer
Returned
1st
Expansion Board ID in the form: 0 = present, 7 = none
(expansion board contains channels 9 through 16)
2nd
Terminal Module ID in the form
0 = screw type, 7 = none or other
3rd
Isolated/Non-isolated Channel status
A bit set to 0 indicates an isolated channel
A bit set to 1 indicates a non-isolated channel or no plug-on
module installed (DO NOT operate the module without a plug-on
module)
Bits 0 – 15 correspond to channels 1 – 16, respectively*
4th
Channel Mode
A bit set to 0 indicates a current output channel
A bit set to 1 indicates a voltage output channel
Bits 0 – 15 correspond to channels 1 – 16, respectively*
5th
Channel Output State
A bit set to 0 indicates the channel output relay is closed
A bit set to 1 indicates the channel output relay is open
Bits 0 – 15 correspond to channels 1 – 16, respectively*
6th
Channel Mode Programmable State (P/J Jumper)
A bit set to 0 indicates a channel is not mode programmable
A bit set to 1 indicates a channel is mode programmable
Bits 0 – 15 correspond to channels 1 – 16, respectively*
*
For 8-channel configurations, the upper 8 bits of integers 3, 4, 5, and 6 are set to 1's.
Meaning
Chapter 3

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