Siemens SINUMERIK 840D sl Commissioning Manual page 88

Expanding the Operator Interface (BE1)
3 Syntax
PLC data
Word y of data block x
Double word y v. of data block x
Real y of data block x
Flag byte x bit y
Flag byte x
Flag word x
Flag double word x
Input byte x bit y
Input byte x
Input word x
Input double word x
Output byte x bit y
Output byte x
Output word x
Output double word x
String y with length z from data block x
Read several variables with one command
This MRNP command can be used to transfer several system or OPI variables in a
single register access, see 3.7 General screen form variables. This access method
is significantly faster than reading via individual access attempts.
The system or OPI variables must be included on a command of the same area.
The areas of the system or OPI variables are organized as follows:
General NC data ($MN..., $SN.., /nck/...)
Channel-spec. NC data ($MC..., $SC.., /channel/...)
PLC data (DB..., MB.., /plc/...)
Axis-spec. NC data of the same axis ($MA..., $SA..)
Structure of the command:
MRNP(Variable name1*Variable name2[* ...], Register index)
In the variable names, "*" is the separator. The values are transferred to register
REG[Register index] and those following in the order that the variable names
appear in the command.
The following therefore applies:
The value of the first variable is located in REG[Register index]
The value of the second variable is located in REG[Register index + 1],
etc., see Section 3.7 General screen form variables, "Register".
Notice
Please note that the list of variables must not contain more than 500 lines nor
exceed the number of registers specified in Section 3.4 General screen form
variables.
BE1/3-82
SINUMERIK 840D sl/840D/840Di/810D HMI Installation and Start-Up Guide (IAM) – 08/2005 Edition
DBx.DBWy
DBx.DBDy
DBx.DBRy
Mx.y
MBx
MWx
MDx
Ix.y or Ex.y
IBx or EBx
IWx or EWx
IDx or EDx
Qx.y or Ax.y
QBx or ABx
QWx or AWx
QDx or ADx
DBx.DBSy.z
© Siemens AG, 2005. All rights reserved
08/2005