Channel Mode Register
The Channel Mode Register reports or programs the voltage or current operating mode for each channel.
Address | Bit | 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 | |
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READ | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | ||
Base + 1A16 | ||||||||||||||||||
| 16 | 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | ||
| WRITE | |||||||||||||||||
| Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | Mode | ||
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Note
Channel Relay Control Register
Ch XX Mode: Writing a one (1) to this field selects the voltage output mode for that channel. Writing a zero (0) to this field selects the current output mode for that channel.
The mode program jumpers on the terminal module override values written to this register. When the P/J jumper for a channel is set to jumper selectable, writing to this register has no effect.
Reading this register returns the channel mode. The channel mode is reported in this register for both VXIbus backplane programming and jumper programming on the terminal module.
Channels 09 through 16 will return ones (1) if the module is configured as an
The Channel Relay Control Register programs and reports the state of each channel relay.
Address | Bit | 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | 00 | |
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READ | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | Ch | ||
Base + 1C16 | ||||||||||||||||||
| 16 | 15 | 14 | 13 | 12 | 11 | 10 | 09 | 08 | 07 | 06 | 05 | 04 | 03 | 02 | 01 | ||
| WRITE | |||||||||||||||||
| Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | Relay | ||
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Ch XX Relay: Writing a one (1) to this field opens the channel relay. Writing a zero (0) to this field closes the channel relay. The write operation will complete before the relays change state. The relays take approximately 5 milliseconds to change state.
Reading this register returns a one (1) in each field if the channel relay is programmed open and a zero (0) if the channel relay is programmed closed.
Note Channels 09 through 16 will return ones (1) if the module is configured as an
136 HP E1418A | Appendix B |