S5-90U/S5-95U
Operations List, Machine Code and List of Abbreviations
EWA 4NEB 812 6115-02b
A-19
Abbreviation
Explanation
Permissible Operand Value Range for
S5-90U
S5-95U
FB/FY
Flag byte
- retentive
- non-retentive
(0 to 63)
(64 to 127)
(0 to 63)
(64 to 255)
Formal operand
Expression with a maximum of 4 characters. The first
character must be a letter of the alphabet.
FW
Flag word
- retentive
- non-retentive
(0 to 62)
(64 to 126)
(0 to 62)
(64 to 254)
I
Input
(0.0 to 127.7)
(0.0 to 127.7)
IB
Input byte
(0 to 127)
(0 to 127)
IN
DB1 parameter: activate interrupt on negative edge
INP
DB1 parameter: activate interrupt on negative and
positive edge
IP
DB1 parameter: activate interrupt on positive edge
IPN
DB1 parameter: activate interrupt on positive and
negative edge
IW
Input word
(0 to 126)
(0 to 126)
KB
Constant (1 byte)
(0 to 255)
(0 to 255)
KBE
DB1 parameter: SINEC L1, position of the
”Receive” coordination byte
KBS
DB1 parameter: SINEC L1, position of the ”Send”
coordination byte
KC
Constant (count)
(0 to 999)
(0 to 999)
KF
Constant (fixed-point number)
(- 32768 to +32767)
(- 32768 to +32767)
KH
Constant (hexadecimal code)
(0 to FFFF)
(0 to FFFF)
KM
Constant (2-byte bit pattern)
arbitrary bit pattern:
(16 bit)
arbitrary bit pattern:
(16 bit)
KS
Constant (2 characters)
(any two alphanumeric
characters)
(any two alphanumeric
characters)
KT
Constant (time)
(0.0 to 999.3)
(0.0 to 999.3)
KY
Constant (2 bytes)
(0 to 255 per byte)
(0 to 255 per byte)
LAD
STEP 5 ladder diagram method of representation
NT
DB1 parameter: number of timers being processed
OB
Organization block
for special applications:
1, 3, 13, 21, 22, 31, 34, 251
1, 3, 21, 22
(0 to 255)
OB13
DB1 parameter: interval (ms) within which OB13 is
called and processed
OBA
DB1 block ID for onboard analog inputs
OBC
DB1 block ID for onboard counters
OBI
DB1 block ID for onboard interrupt
OHE
DB1 parameter: enable operating hours counter
Содержание SIMATIC S5-90U
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