Siemens SIMATIC S7-300 Series User Manual

CPU 31x-2 as DP Master/DP Slave and Direct Communication
2-27
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
A5E00111190-01
2.6.6 Master PROFIBUS Address
Definition
The DP address of the DP Master is written to the diagnostic byte Master
PROFIBUS address:
 The master that has configured the DP slave
 The master that has read and write access to the DP slave
Master PROFIBUS Address
Table 2-13 Structure of the Master PROFIBUS Address (Byte 3)
Bit Description
0 to 7 DP address of the DP master that configured the DP slave and has
read/write access to that DP slave.
FF
H
: DP slave was not configured by a DP master.
2.6.7 Manufacturer ID
Definition
The manufacturer identification contains a code specifying the DP slave’s type.
Manufacturer Identification
Table 2-14 Structure of the Manufacturer Identification (Bytes 4 and 5)
Byte 4 Byte 5 Manufacturer Identification for
80
H
2F
H
CPU 315-2 DP
80
H
6F
H
CPU 316-2 DP
80
H
7F
H
CPU 318-2

Siemens SIMATIC S7-300 Series Specifications

General

Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Protection Class	IP20
Processor	Depends on CPU model (e.g., CPU 315-2 DP has 16-bit processor)
Memory	Depends on CPU model (e.g., CPU 315-2 DP has 256 KB work memory)
Communication Interfaces	MPI, PROFIBUS DP, Ethernet (depending on model)
Power Supply	24 V DC or 120/230 V AC (depends on power supply module)
Digital Inputs	Depends on module (e.g., 8, 16, 32 channels)
Digital Outputs	Depends on module (e.g., 8, 16, 32 channels)
Analog Inputs	Depends on module (e.g., 8, 16 channels)
Analog Outputs	Depends on module (e.g., 2, 4)
Relative Humidity	5% to 95% non-condensing
Mounting	DIN rail