Rockwell Automation D64046.5.1 U MNL WIN DDMC - Manual (Page 47)

Configuring SDS Instructions
Chapter 4
4-11
Entering or Modifying SDS Instruction Information
Once the SDS instruction is displayed, the system prompts you to enter the
Control File starting address. To enter or modify parameters into the SDS
instruction:
1. Type the Control File address and press [ENTER] .
The control file must be expressed in the following manner:
For the: Use this format: Where:
PLC-5 Nfff:eee fff = an integer file between 10 - 999 and
eee = an element number between 0 - 999.
PLC-5/250 Nffff:eeee ffff = an integer file between 10 - 9999 and
eeee = an element number between 0 - 9999.
In the PLC-5/250, when you enter the control file address, the system
displays a number (1, 2, 3, or 4) in front of the address. This number
represents the logic processor in the PLC-5/250.
Important: The control file and the step descriptor file addresses must be
local to the logic processor that is executing the associated SDS
instruction. Do not place either of these files in system memory. Do not
reference this step descriptor file in other logic processors.
The PLC-5/250 chassis supports up to four logic processor modules. For
more information on logic processors, refer to the PLC-5/250
Programming Software Documentation Set (publication 9313-5250).
When the Control File address is entered, the system prompts you to enter
the Step Description File address.