Instruction Manual

Pointe Controller User Guide Appendix C: Ladder Diagram Block Reference
415
Functional Description
This block always passes the Enable input state (EN) through to the Enable Out
output state (ENO) without change; when EN becomes on, ENO is turned on, and
when EN becomes off, ENO is turned off.
When EN becomes on, the block function is executed: the Input Strings 1 and 2
(IN1 and IN2) are concatenated and the resulting string is placed in the Output
String (OUT).
For example:
IN1: ‘Hello world.’
IN2: ‘ This is PointeControl.’
OUT: ‘Hello world. This is PointeControl.’
NOTE: This function does not insert any spaces between the concatenated strings.
The block function is executed every time the ladder is scanned, so long as EN
remains on. If EN becomes off, then OUT remains at its last calculated value until
EN becomes on and the block function is executed again.
Configuration Reference
The parameters of this block are described in the following table:
Param Name Config Var Type Description
EN Enable no - The state of the rung (off/on)
received from the left.
ENO Enable
Out
no - The state of the rung (off/on)
passed to the right.
IN1 Input
String 1
req String
Literal
The first input string. Literals must
be enclosed in single quotes (‘ ’).
IN2 Input
String 2
req String
Literal
The second input string. Literals
must be enclosed in single quotes (‘
’).
OUT Output
String
req String The result of concatenating the
input strings. The output is always
NULL-terminated.
NOTE: If the configured length of the string variable assigned to OUT is smaller
than the result of the function, then the result is truncated to fit. No overflow
error is generated.