Specifications

RN: 5-65
RS3: Software Release Notes for P1 R4.2
Changes to RS3 Manuals
Description: Changes were made to Figure 9.3.13 under this topic
(page 9-3-27).
Masking Within the I/O Block
I/O BLOCK CONFIGURATION
Address =02B008 Device Type PLCB
PLC Write Mask ⇒ FFFFx
Value From Source 0200x
PLC 7
FlexTerm
Port A
Port B
Port
Port
Register 1000
ponml k j ihgfedcba
0 0000 01000000 000
Register 1001
ponmlkjihgfedcba
PLC Control Logic
Run Command
Stop Command
Source Value
Write Mask*
* y=yes, bit may be changed
n=no, bit may not be changed
Original
Register Contents
Examples
1111-- 0000--1111--0000 1111-- 0000--1111--0000 1111-- 0000--1111--0000
0000-- 0010--0000--0000 0000-- 0010--0000--0000 0000-- 0100--0000--0000
0000-- 0010-- 0000-- 0000 1111-- 0010--1111--0000 1111-- 0100--1111--0000
Resulting
Register Contents
0200 0200 0400
yyyy-- yyyy --yyyy--yyyy nnnn-- nyy n--nnnn--nnnn nnnn-- nyyn--nnnn--nnnn
FFFF 0600 0600
Figure 9.3.13. Using the Write Mask