Front Panel Operation - 5
4 - Programming the Digital Output Port
Your dc source is shipped with the output port function set to RIDFI mode. In this mode the port functions as a remote inhibit input with a discrete fault indicator output signal. You can also configure the port to act as a Digital Input/Output device.
To configure the RIDFI mode of the port, proceed as follows:
| Action | Display |
1. | On the Function keypad, press Output. | *RST |
2. | Scroll through the Output menu by pressing q . The PORT command | PORT RIDFI |
| lets you select either the RIDFI or the DIGIO function. |
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3. | Scroll to the RI command to configure the Remote INHibit indicator. | RI LIVE |
| Use the ã and ä keys to select either LIVE or LATCHING, either of | RI LATCHING |
| which enable the RI indicator. With RI enabled, a |
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| input will disable the output of the unit. LIVE causes the output of the |
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| unit to track the state of the INH input. LATCHING latches the output |
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| of the unit off in response to the inhibit signal. |
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4. | Access the Output menu again and scroll through the menu. The DFI | DFI ON |
| command lets you enable the Discrete Fault Indicator. Use the ä key |
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| and select ON to enable the FLT output. With the FLT output enabled, |
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| the |
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| when a fault condition is detected. |
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5. | Scroll to the DFI:SOUR command to select the internal source that | DFI:SOUR RQS |
| drives this signal. Use the ä key to select from the RQS or ESB bits, or | DFI:SOUR ESB |
| the Operation or Questionable status registers. Status summary bits are | DFI:SOUR OPER |
| explained in chapter 3 of the Programming Guide. | DFI:SOUR QUES |
To configure the DIGIO mode of the port, proceed as follows:
| Action | Display |
1. | On the Function keypad, press Output. | *RST |
2. | Scroll through the Output menu by pressing q . The PORT command | PORT DIGIO |
| lets you select either the RIDFI or the DIGIO function. |
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3. | Scroll to the DIGIO command to set and read the Digital Input/Output | DIGIO 5 |
| Port. Enter a number from 0 to 7 to program the four bits (0 programs |
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| all bits low; 7 programs all bits high). Press Enter when done. |
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