Schneider Electric 4000 OPERATING OUTPUTS FROM THE COMMAND INTERFACE, USING THE COMMAND INTERFACE TO CHANGE CONFIGURATION REGISTERS

63230-300-212 AppendixB—Using the Command Interface

April 2001 Operating Outputs from the Command Interface

187

Tooperate an outputfrom the command interface, firstidentify the relay using

the

I/O point number

. Then, set theoutput to external control. For example,

to energizethe last output on Option Card B, write the commandsas follows:

1. W rite number26 to register 8001.

2. W rite commandcode 3310 to register 8000 to set the relay to external

control.

3. W rite commandcode 3321 to register 8000.

IfyoulookinTableB–2 on page 183, you’ll see that commandcode 3310

sets the relayto external control and command code 3321 is listed as the

command usedto energize a relay.Command codes 3310–3381 are for use

with inputs and outputs.

Youcan also use the command interface to change valuesin selected

metering-relatedregisters, such as synchronizingthe time of day of the clock

or resetting genericdemand.

Twocommands, 9020 and 9021, work together as part of the command

interfaceprocedure when you use it to change circuit monitor configuration.

Youmust first issue command 9020 to enter into setup mode,change the

Only one setup sessionis allowed at a time. While in this mode, if the circuit

monitordetects more than two minutes of inactivity,that is, if youdo not write

anyregister values or press anybuttons on the display,the circuit monitor will

timeoutand restore the original configuration values.All changes will be lost.

Also,if the circuitmonitor loses power or communications while in setup

mode, yourchanges will be lost.

The general procedurefor changing configuration registers using the

command interfaceis as follows:

1. I ssuecommand 9020 in register 8000 to enter into the setup mode.

2. Make changes to the appropriate register by writing the new value to that

For instructionson reading and writing registers, see “Reading and

WritingRegisters”on page 44 in Chapter 3—Operation.

3. To save the changes, write the value1 to register 8001.

NOTE: Writingany other value except 1 to register 8001 lets you exit

setup mode withoutsaving your changes.

4. I ssuecommand 9021 in register 8000 to initiate the save and reset the

circuit moni tor.

For example,the procedure to change the demand interval for current is as

follows:

1. I ssuecommand code 9020.

2. W rite thenew demand interval to register 1801.

3. W rite 1 toregister 8001.

4. I ssuecommand code 9021.

See Appendix A—AbbreviatedRegister Listing on page 127 for those

registerst hatrequire you to enter setup mode to make changes to the

registers.

OPERATING OUTPUTS FROMTHE COMMAND INTERFACEUSING THE COMMANDINTERFACE TO CHANGECONFIGURATION REGISTERS