Emerson MSM400 Working Register, Safe Register, OFF-LINE Register, Default Register, On/Clear Key

WORKING REGISTER

Holds the same value as is currently in the control unit.

SAFE REGISTER

Use as a backup, can only be sent to the same control unit as it was loaded from.

OFF-LINE REGISTER

General purpose register, use to program a control unit offline or transfer data between transmitters of the same type.

DEFAULT REGISTER

The normal ex-factory values.

When a new value is programmed into certain parameters a warning message OUTPUT MAY BE CHANGED is displayed with the option to proceed with or abort this change. This may be of importance where the output, either digital or analogue, is controlling some process, such that a sudden change could cause problems.

D8.0 Keyboard Functions

ON/CLEAR KEY

Aborts data entry if this has been started, else returns to the previous menu.

EXE KEY

When display is read/write parameter, writes the value on line 2 or the list selection on line 3 to the control unit.

↑AND ↓ ARROW KEYS

Used to step through a parameter block in numerical order.

MODE KEY

Used to access the WORKING, SAFE and OFF-LINE registers and the DEFAULT value while a read/write parameter is being displayed. The selected register is indicated by W, S, O or D on the right hand side of line 2.

←AND → ARROW KEYS

Used to select an item from a list when <> is displayed on the right of line 3.

P*** AND D*** ENTRY

Allows direct access to a parameter via its number. Other parameters in the same group can then be accessed by the ↑ and ↓ arrow keys.

IP258

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