A.3 List Of Abbreviations - Siemens S5-100U User Manual

Operations List, Machine Code and List of Abbreviabrations
A.3 List of Abbreviations
Abbreviation
ACCU 1 Accumulator 1
ACCU 2
Accumulator 2
BF Byte constant (fixed-point number)
C Counter
- retentive
- non-retentive
- for the "Bit Test" and "Set" supplementary
operations
CC 0/CC 1 Condition code 0/Condition code 1
CF DB1 parameter: input correction factor (integral
real-time clock)
CLK DB1 parameter: clock data location
CPU Central processing unit of programmable
controller
CSF STEP 5 control system flowchart method of
representation
D Data (1 bit)
DB Data block
DL Data word (left-hand byte)
DR Data word (right-hand byte)
DW Data word
EF DB1 parameter: SINEC L1, position of receive
mailbox
F Flag
FB Function block
FB/FY Flag byte
Formal Expression with a maximum of 4 characters. The
operand first character must be a letter of the alphabet.
FW Flag word
I Input
IB Input byte
IW Input word
KB Constant (1 byte)
KBE DB1 parameter: SINEC L1, position of the
"Receive" coordination byte
* +integrated FBs such as CPU 103
A-18
Explanation
(When accumulator 1 is loaded,
any existing contents are shifted
into accumulator 2.)
- retentive
- non-retentive
- retentive
- non-retentive
- retentive
- non-retentive
Permissible Operand Value Range for
CPU 100 CPU 102
(- 127 to +127) (- 127 to +127)
(0 to 7) (0 to 7)
(8 to 15) (8 to 127)
(0 to 15) (0 to 127)
(2 to 63) (2 to 63)
(0 to 255) (0 to 255)
(0 to 255) (0 to 255)
(0 to 255) (0 to 255)
(0.0 to 63.7) (0.0 to 63.7)
(64.0 to 127.7) (64.0 to 127.7)
(0 to 63) (0 to 63*)
(0 to 63) (0 to 63)
(64 to 127) (64 to 127)
(0 to 62) (0 to 62)
(64 to 126) (64 to 126)
(0.0 to 127.7) (0.0 to 127.7)
(0 to 127) (0 to 127)
(0 to 126) (0 to 126)
(0 to 255) (0 to 255)
S5-100U
CPU 103
(- 127 to +127)
(0 to 7)
(8 to 127)
(0 to 127)
(0.0 to 127.15)
(0.0 to 255.15)
(2 to 255)
(0 to 255)
(0 to 255)
(0 to 255)
(0.0 to 63.7)
(64.0 to 255.7)
(0 to 255)
(0 to 63)
(64 to 255)
(0 to 62)
(64 to 254)
(0.0 to 127.7)
(0 to 127)
(0 to 126)
(0 to 255)
EWA 4NEB 812 6120-02