Service And Diagnostics; Displaying Plc And Nc Variables - Siemens SINUMERIK 840D sl Commissioning Manual

Service and diagnostics

16.1

Displaying PLC and NC variables

The "PLC/NC Status" window supports the observation and modification of PLC memory
locations and NC system variables.
You can also modify PLC memory locations.
You receive information in the list on operands, with their format and status value.
PLC operands
Inputs
Outputs
Bit memory
Times
Meters
Data
Formats
B
H
D
G
C
Examples
EB2
MW20
DB2.DBB180
$AA_IM[1]
HMI sl (IM9)
Commissioning Manual, 01/2008, 6FC5397-1DP10-3BA0
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)
Binary
hex
dec
Floating comma (for double words)
Character (ASCII character)
16
155