Plc; General - Siemens SINUMERIK 840D Operator's Manual

8
Diagnosis Operating Area

8.4 PLC

8.4 PLC

8.4.1 General

Inputs:
Outputs:
Bit memories:
Timers:
Counters:
Data:
Format:
8-290
Function
The function is also available in the "Services" operating area.
You can obtain information about the current states of the following
memory locations of the PLC and change them if necessary:
Input bit (Ex), input byte (EBx)
Input word (Ewx), input double word (Edx)
Output bit (Ax), output byte (Abx)
Output word (Awx), output double word (Adx)
Memory bit (Mx), memory byte (MBx)
Memory word (MWx), memory double word (MDx)
Time (Tx)
Counter (Cx)
Data block (DBx), data bit (DBxx), data byte (DBBx), data word
(DBWx), data double word (DBDx)
B = binary
H = hexadecimal
D = decimal
G = floating comma (for double words)
C = character (ASCII character)
Operand Example Reading
Inputs Yes
E 2.0
IB 2
Outputs Yes
Q20.1
QB 20
Markers Yes
M 60.7
MB 60
FW 60
Timers T20 Yes
SINUMERIK 840D/810D Operator's Guide HMI Embedded (BEM) – 03.04 Edition
Writing Format Value
Yes
B 0
B 0101 1010
H 5A
D 90
Yes
B 1
B 1101 0110
H D6
D 214
Yes
B 1
B 1101 0110
H B8
D 180
C
No
B
H
D
 Siemens AG, 2004. All rights reserved
8
03.04
Area
0-127
0-127
0-255
0-31