Siemens SINUMERIK 840 Planning Guide

11.92 2 Description of Functions
2.2.2 Loading
In this case, the tool data are not written from the dynamic buffer directly into the correspon-
ding data word but only into the loading line (DW 2 of the magazine table).
FB 139 "Data distributor" searches for an empty location suitable for the tool size. Up to soft-
ware version 5, this location is output in DB 146, DW 5 as a locator number and in DW 4 as a
data word number. The user can now transfer the data from the data words of the loading line
to the data words of the empty location found.
Structure of DB 146
1514131211109876543210
DW 1 8) 7) 6)
DW 2 1) 2) 3) 4) 5)
DW 3
DW 4
DW 5
Magazine number
DW number of empty location
Locator number
1) Job running
2) Unload location
3) No empty location found
4) Load location
5) Interface DW 2...DW 5 valid
6) Disable loading/unloading
7) Acknowledgement loading negative
8) Acknowledgement loading positive
© Siemens AG 1991 All Rights Reserved 6FC5 197-0AA40-1BP1 2–23
SINUMERIK 840/880 (PJ)

Siemens SINUMERIK 840 Specifications

General

Control Type	CNC
Axes	Up to 31
Display	TFT color display
PLC	Integrated
HMI	SINUMERIK Operate
Communication Interfaces	Ethernet, PROFIBUS, PROFINET
Type	CNC system
Programming Languages	G-code
Max Number of Channels	10
Operating Temperature	0 to 45 °C
Relative Humidity	Up to 95% (non-condensing)
Protection Class	IP54 (front panel)