Siemens SINUMERIK 810D Programming Guide

1
04.00 Flexible NC Programming
1.10 Strin
g
o
p
erations
1
840D
NCU 571
840D
NCU 572
NCU 573
FM-NC 810D 840Di

Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
1-49
1.10.2 Chaining of strings
This functionality makes it possible to compile a
string with individual components. The chaining
function is implemented via operator: <<. This
operator has STRING as the target type for all
combinations of basic types CHAR, BOOL, INT,
REAL and STRING. Any conversion that may be
required is carried out according to existing rules.
Types FRAME and AXIS cannot be used with this
operator.
Syntax:
bel._Typ << bel._Typ
Result type: STRING
Semantics:
The specified strings (the implicitly converted other
type in some cases) are chained.
This operator is also available as a unary variant. It
is thus possible to perform an explicit type
conversion to STRING (not for FRAME and AXIS).
Syntax:
<< bel._Typ
Result type: STRING
Semantics:
The specified type is converted implicitly to type
STRING.
For example, this function can be used to compile a
message or a command from text lists and to insert
parameters (such as module name):
MSG(STRG_TAB[LOAD_IDX]<<MODULE_NAME)

Siemens SINUMERIK 810D Specifications

General

Brand	Siemens
Model	SINUMERIK 810D
Category	Control Unit
Language	English