Reserve Resources (Timers, Counters, Fc, Fb, Db, I/O); Commissioning Hardware Configuration Of The Plc Cpu; Starting Up The Plc Program; Installation Of The Basic Program - Siemens SINUMERIK 840D sl Function Manual

13.5

Reserve resources (timers, counters, FC, FB, DB, I/O)

Reserve resources (timers, counters, FC, FB, DB, I/O)
The components below are reserved for the basic program:
● Timer
No reservation
● Counter
No reservation
● FC, FB, DB
FC0 to FC29 and FB0 to FB29 are reserved for the basic program. The number range
between 1000 and 1023 is also reserved for FCs and FBs. DB1 to DB62, DB71 to DB80
are reserved for data blocks. The number range 1000 to 1099 is also reserved in addition
for DB. The data blocks of channels, axes/spindles and tool management functions that
are not activated may be assigned as desired by the user.
● I/O range
The PLC has an I/O address volume of 8192 bytes each for inputs and outputs. The address
ranges starting at 4096 / 4096 are reserved for/occupied by integrated drives. However,
diagnostic addresses for modules can be assigned to the highest address range as
proposed by STEP 7. Furthermore, the address range between 256 and 287 is assigned
for the NCK, CP and HMI in rack 0 on the SIMATIC 300 station.
13.6

Commissioning hardware configuration of the PLC CPU

The commissioning of the PLC CPU is described in detail in:
References
CNC Commissioning Manual: NCK, PLC, Drive:
● Section: "Connect PG/PC to PLC"
● Section: "Commissioning PLC"
● Section: "Basics" > "PLC program"
● Section: "General tips" > "Separate NCK and PLC general reset"
● Section: "General tips" > "Integrating PG/PC into the network (NetPro)"
13.7

Starting up the PLC program

13.7.1

Installation of the basic program

The installation of the basic program is described in detail in:
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
P3: Basic PLC program for SINUMERIK 840D sl
13.7 Starting up the PLC program
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