HP E1418A User Manual

Page 42

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The

DIAG:CONF?

query returns six integers. The six integers returned

contain the module configuration and have the following meaning.

Integer

Returned

Meaning

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.

For example, if the following six integers are returned, the module has the
configuration indicated.

Integer

Decimal

Value

Configuration

1st

7

No expansion board installed
(Only channels 1 through 8).

2nd

7

No Terminal Module installed or
unknown terminal module installed.

3rd

-1

All channels are non-isolated.

4th

-1

All channels are voltage output channels.

5th

-1

All channel outputs are disabled
(all output relays are open).

6th

-1

All channels are output mode
programmable.

Chapter 2

Programming Examples 41

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