Library manual M238 system functions | 2 MB - BERGER - POSITEC

1-phase counter
2-phase counter
BOOL
Boot application
Modicon M238 Logic Controller
Glossary
EIO0000000364 04/2012
Glossary
0-9
A 1-phase counter uses 1 hardware input as counter input. It usually counts up or
counts down when there is pulse signal in the input.
A 2-phase counter uses the phase difference between 2 input counter signals to
count up or count down.
B
A Boolean type is the basic data type in computing. A BOOL variable can have one
of these values: 0 (FALSE), 1 (TRUE). A bit that is extracted from a word is of type
BOOL, for example: %MW10.4 is a fifth bit a memory word number 10.
Files that contain machine dependent parameters:
machine name
device name or IP address
Modbus Serial Line address
Routing table
EIO0000000364 04/2012 81