User`s manual

16
SIEMENS (S5 COMMUNICATIONS) REFERENCE
Data Entry Screens
The data format selections available for Data Entry screens are listed
below and their parameters described.
Entry Screen
Parameter for:
Bit Data Description
Register Number The PLC data location operand and address.
Bit Number The Bit number if the register number designates a multiple
bit location (a 16 bit data address, for example). This
selection is irrelevant if the register number refers to a Bit
type address.
Input Data by Pressing
‘1’/’0' or ‘Y’/’N’ ?
(Enter 1 or Y) This parameter determines whether the operator will enter
1 or Y to set the defined bit location. If 1 is entered, 0 will
clear the bit location. If Y is entered, N will clear the bit
location.
Default Value ?
Z = No Default
(Enter 1,0,Y,N,Z) This parameter defines the default value that is displayed
at the data entry position of the SOI display. If a default
value of Y is entered, a Y is displayed, and the operator is
only required to press ENTER to set the bit location.
An entry of Z defines no default value. If there is no default
value programmed, and the operator presses the ENTER,
no data is sent to the PLC.