Siemens SIMATIC NET S7-300 User Manual

7 Programming FCs (Functions) and FBs for S7 Ethernet CPs
A-220
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
Commands and Evaluating the Job Results
The following table shows you the possible commands and the results that can be
evaluated in the RESULT1/2 parameters.
Table 7-7 Commands to FC AG_CNTRL
CMD
Meaning
0 NOP – no operation
The block executes without a job being sent to the CP.
RESULT (for CMD = 0) Meaning
Parameter Hex value/range
RESULT1 0000 0001
H
Executed without error
RESULT2 0000 0000
H
Default
CMD Meaning
1 CN_STATUS – connection status
This command returns the status of the connection selected with the ID.
The CP is selected in the LADDR parameter.
If bit 15 (reset ID) is set, this is automatically reset (this action corresponds to the
CN_CLEAR_RESET job - see CMD = 5).
RESULT (for CMD = 1) Meaning
Parameter Hex value/range Bit/valu
e
RESULT1 0000 000*
H
Bits 0-3: Codes for the send direction
(excluded values: 0x2)
Bit 0 Connection Type
0  No send and receive connection
1  Connection reserved for send and
receive jobs
Bit 1 Status of current job
0  No send job being executed
1  Send job being executed
Bits 2+3 Previous job:
00  No information available on previous
send job
01  Previous send job completed
successfully
10  Previous send job not completed
successfully
FC10 AG_CNTRL - continued

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)