Interrupt status register, Isolation status register – HP E1418A User Manual

Page 134

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Interrupt Status

Register

The Interrupt Status Register shows the state of the trigger ignored interrupt
condition. The bit is a strobed interrupt source.

Address

Base + 12

16

Bit

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

READ

Unused

TRG

IGN

Unused

WRITE

TRG IGN: This field is set to a one (1) if the trigger ignored condition exists.

Isolation Status

Register

The Isolation Status Register reports the plug-on module isolated/non-isolated
configuration for each channel.

Address

Base + 14

16

Bit

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

READ

Ch

16

ISO

Ch

15

ISO

Ch

14

ISO

Ch

13

ISO

Ch

12

ISO

Ch

11

ISO

Ch

10

ISO

Ch

09

ISO

Ch

08

ISO

Ch

07

ISO

Ch

06

ISO

Ch

05

ISO

Ch

04

ISO

Ch

03

ISO

Ch

02

ISO

Ch

01

ISO

Ch XX ISO: Each field will return a one (1) if the channel has a non-isolated
plug-on installed. A zero (0) indicates an isolating plug-on is installed.

Notes

A channel will not function without a plug-on module installed. A one (1)
indicates either a non-isolated plug-on is installed or that no plug-on module
is installed. DO NOT operate the module without a plug-on module
installed on every channel.

For 8-Channel configurations, the upper 8 bits (channels 09 through 16) are
set to 1’s (FF

16

).

Appendix B

HP E1418A Register-Based Programming 133

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