Siemens SIMATIC NET S7-300 User Manual

7 Programming FCs (Functions) and FBs for S7 Ethernet CPs
A-257
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
Example in STL representation:
STL Explanation
CALL FB 54, DB 54
CPLADDR := W#16#0110
DONE := M 1.1
ERROR := M 1.2
NEW := M 1.3
STATUS := MW 12
ID := W#16#86A
LEN := MW 16
MODE := MD 18
TINFO := P#DB4.DBX0.0 BYTE 32
AINFO := P#DB4.DBX32.0 BYTE 532
// PNIO_ALARM block call
(read/write data record)
// Module address from hardware configuration
// Address for return parameter DONE
// Address for return parameter ERROR
// TRUE: A new alarm was received
// Error code of the SFB or PNIO-Ctrl
// Logical base address of the component (module
or submodule) from which an alarm was
received
// Length of the received alarm information
(AINFO)
// RESERVED (value always = 0)
// (task information) Destination area for OB
start information and management information;
fixed length 32 bytes of diagnostic
information
// (alarm information) Destination area for
header information and additional alarm
information
Explanation of the Formal Parameters
The following table explains all the formal parameters for FB54:
Paramet
er
Declarat
ion
Data
type
Possible
Values
Remarks
CPLADDR INPUT WORD - Start address of the module that
caused the problem
DONE OUTPUT BOOL 0: -
1: Alarm information
transferred
successfully
This parameter indicates whether or
not the job was completed without
errors.
If DONE = 1, the NEW parameter must
also be checked.
ERROR OUTPUT BOOL 0: -
1: Error
Error code
NEW OUTPUT BOOL 0: Data transfer active or
no new alarm
1: New alarm received
and acknowledged
If DONE = 1 and NEW = 1, a new
received alarm is signaled.
STATUS OUTPUT WORD 0: No error
Other value: Error
(see Table 7-14)
Status code

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)