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西门子PLC程序源码-s7诊断PROFIBUS 站的例程序.zip （3个子文件）

西门子PLC程序源码-s7诊断PROFIBUS 站的例程序

使用FB125程序诊断.pdf 133KB

Dp_dia45.arj 190KB

Dp_dia45_e11.pdf 169KB

SIEMENS 20.02.2003

Page 1/17 DP_DIA45_e.DOC

Description of the DP-Diagnostic Blocks for SIMATIC S7

Two different S7 blocks stand for the user program for diagnostic evaluation of decentralized structure

with PROFIBUS-DP and SIMATIC S7.

• The

FB125

is the right solution, if beside a overview diagnosis of the detailed information about fault

or failure of the bus node is required.

• The

FC125

is the easy variant and is valuing just for Information from (overview diagnosis) ”which

bus nodes are failed or faulty”. The detailed information can not be displayed with this block.

1 Application Area of FB125 and FC125

FB125 and FC125 can be used in the following integral and external DP interfaces:

• CPU 313C-2 DP

• CPU 314C-2 DP

• CPU 315-2 DP (from 6ES7 315-2AF

-0AB0)

• CPU 315-2 DP (only 6ES7 315-2AF

-0AB0):

FC125 not usable

FB125 without detection of faulty slaves by Start/RESET

• CPU 316-2 DP

• CPU 318-2 DP

• C7-626 DP (from 6ES7 626-2AG01-0AE3)

•

C7-633 DP and C7-634 DP

• SINUMERIK 840D with integrated CPU315-2 DP (6ES7 315-2AF

-0AB0):

FC125 not usable

FB125 without detection of faulty slaves by Start/RESET

•

SINUMERIK 840DI with integrated CPU315-2 DP (6ES7 315-2AF

-0AB0)

• CPU 41x-2/3/4 DP

• CP 443-5

• IM 467 and IM 467 FO

• WIN AC

• WIN LC

•

Not

for CP 342-5

2 FB125 Diagnostic Block

The FB125 is a interrupt-driven function for detection of failed and faulty DP slaves. In the case of faulty

slaves, detailed diagnostics information concerning the cause of the fault is displayed (slot or module

number, module status, channel number, channel fault). The diagnostics information of any DP slaves

can be read and interpreted via individual diagnostics. Overview diagnostics give information on

configured, existing, failed and faulty DP slaves

The FB125 diagnostic block also offers information of

subordinate ASI bus systems, when a DP/ASI-Link is used as a DP slave. If there’s an diagnostic

repeater (MLFB: 6ES7 972-0ABxx-0XA0) in the plant, the FB125 decodes the diagnostic frame of the

repeater and informs you about error location and error cause.

All interrupts are delayed during execution of the FB125.

2.1 Calling the FB125 DP in the S7 User Program

The DP diagnostic block is called via the following statement in the user program:

CALL FB125, DBxy

(xy represents any instance data block number)

SIEMENS 20.02.2003

Page 2/17 DP_DIA45_e.DOC

The parameter list then appears automatically with the formal operands that are initialized with actual

operands. Note: when calling the FB, it is not mandatory to initialize all parameters with an actual

operand since the actual operands are stored in the instance data block.

This call (including the same instance data block number and the same user actual operand) must be

made in the three execution levels

OB1, OB82 and OB86

. A nested FB125 call in the three execution

levels is possible (e.g.: OB82 → FC120 → FB125). The order and the contents of the 20 bytes of

temporary local data of the organization blocks OB1, OB82 and OB86 must not be changed but can be

extended at any time.

The following system functions are used internally in the FB125: SFC13 and SFC51 with SZL 0C91 (in

the case of an internal DP interface to the master CPU) or SZL 4C91 (in the case of an external DP

interface to the CP/IM). It is

not

permissible to call SFC13 and/or SFC51 with SZL 0C91/4C91 in OB1 in

addition to the FB125 call.

Evaluation of the information at the block output parameters only makes sense in the cyclic program

section (OB1).

The block FB125 will be processed orderly, if the BIE-Bit is set as “1”. And The BIE-Bit will be removed, if

the processing of FB125 was error.

2.2 Parameters of the FB 125 and their meanings

Input parameters:

• DP_MASTERSYSTEM (Int)

Here, the number of the DP master system configured with STEP 7 must be specified.

• EXTERNAL_DP_INTERFACE (Bool)

Indicates whether the master DP interface is an integral interface (master CPU =0) or an external DP

interface (CP/IM =1).

• MANUAL_MODE (Bool)

Manual mode: individual diagnosis of DP slaves is possible in this mode.

• SINGLE_STEP_SLAVE (Bool)

Transition to the next failed/faulty DP slave.

• SINGLE_STEP_ERROR (Bool)

Transition to the next error on the displayed DP slave.

• RESET (Bool)

Accept the specified number of DP master system and type of DP interface. Then the DP evaluation is

initialized and restarted. The entire DP master system is regenerated, i.e. all configured, existing,

failed and faulty DP slaves are automatically detected in an initialization routine.

• SINGLE_DIAG (Bool)

Manual mode: reading the individual diagnosis of a DP slave. The number of the slave is specified by

the user at the “SINGLE_DIAG_ADR” parameter.

• SINGLE_DIAG_ADR (Byte)

Manual mode: the number of the slave for individual diagnosis.

SIEMENS 20.02.2003

Page 3/17 DP_DIA45_e.DOC

Output parameters:

• ALL_DP_SLAVES_OK (Bool)

Group indicator that the DP bus system is operating fault-free (1 ⇒ all slaves are o.k.)

• SUM_SLAVES_DIAG (Byte)

Number of affected DP slaves (failed or faulty). The number is detected for the first time at restart or

warm restart.

• SLAVE_ADR (Byte)

Failed or faulty DP slave (range 1..126). In SINGLE_STEP_SLAVE mode, the next failed or faulty

slave is indicated at each jog (dialing through of the affected slaves). The affected slaves are indicated

in ascending order of slave addresses.

• SLAVE_STATE (Byte)

Information concerning the SLAVE_ADR: Status of the indicated slave.

0: DP slave is o.k.

1: DP slave failed

2: DP slave faulty

3: DP slave is not configured or DP slave cannot be diagnosed

• SLAVE_IDENT_NO (Word)

Information concerning the SLAVE_ADR: Profibus identification number of the indicated DP slave

following PNO.

• ERROR_NO (Byte)

Information concerning the SLAVE_ADR:

Current error number indicated for the affected slave. This

allows all errors/faults to be distinguished from each other via a unique number.

• ERROR_TYPE (Byte)

Information concerning the SLAVE_ADR:

1: Slot diagnosis (general specification of the faulty slot/module)

2: Module status (refinement of slot diagnosis to include the status of the slot/module)

3: Channel diagnosis (location of module no, channel no, channel error type in accordance with DP

standard)

4: S7 diagnosis (location of module no, channel no and channel error type)

This applies only to S7 slaves or S7 modules from Siemens. The diagnostic information is taken

from the S7 diagnostic data record DS0 or DS1.

5: Unit diagnosis (the unit specification of diagnostic data define the slave product and it describe in

the manual of slave). The slave diagnostic data is displayed in byte 932 to 1175 of instance data

block.

6: Cable diagnosis (error location and error cause detected from diagnostic repeater)

• MODULE_NO (Byte)

Information concerning the SLAVE_ADR: Number of the faulty module of the slave (slot no. or module

no.).

• MODULE_STATE (Byte)

Information concerning the SLAVE_ADR: Status of the module (only in the case of module status as

ERROR_TYPE):

0: Module o.k., valid user data

1: Module fault, invalid user data

2: Incorrect module, invalid user data

3: No module, invalid user data

•

CHANNEL_NO (Byte)

Information concerning the SLAVE_ADR: Number of the faulty channel on the module.

SIEMENS 20.02.2003

Page 4/17 DP_DIA45_e.DOC

• CHANNEL_TYPE (Byte)

Information concerning the SLAVE_ADR: Type of the faulty channel on the module.

Type (Hex) Meaning

00 Reserved

01 Input

02 Output

03 Input-/Output

04-1F Reserved

20 PtP-Coupling

21-2F Reserved

30 F-Digital Input

31 F-Digital Output

32-3F Reserved

40 DI SINAUT RTU

41 CO SINAUT RTU

42-4F Reserved

50 SIWAREX

51-54 Reserved

55 DP-Interface module (Slave)

56-5F Reserved

60 Bit I/O (e.g. ASI-CP)

61 HART-Input

62 Reserved

63 HART-Output

64-6F Reserved

70 Digital-Input

71 Analog-Input

72 Digital-Output

73 Analog-Output

74 FM-POS

75 FM-REG

76 FM-COUNT

77 FM-TECHNO

78 FM-NCU

79 SM-POS-INPUT

7A DESINA-Channel

7B DP-Norm channel (Input)

7C DP-Norm channel (Output)

7D DP-Norm channel (other)

7E Ultrasound position detection (USW 300)

7F-FF Reserved

• CHANNEL_ERROR_CODE (Int)

Information concerning the SLAVE_ADR: Every channel error is assigned a clear error information.

Code Meaning

0 -

1 Short-circuit (e.g. on the encoder line or on the output line)

2 Undervoltage (supply voltage)

3 Overvoltage (supply voltage)

4 Overload

5 Overtemperature

6 Wire break (e.g. on the sensor)

7 Upper limit violated

8 Lower limit violated

9 Fault (e.g. encoder supply, load voltage at the output, end of service life)

10-15 -

16 Parameterization error

17 No encoder voltage or load voltage

18 Defective fuse

19 -

20 Ground fault

21 Reference channel error

22 Process interrupt lost

23 Actuator warning

24 Actuator shutdown

SIEMENS 20.02.2003

Page 5/17 DP_DIA45_e.DOC

Code Meaning

25 Safety-related shutdown

26 External fault (e.g. sensor fault, actuator fault)

27 Fault not clear

28-31 -

32 ASI-Diagnosis

33 Configuring error/parameterization error

34 Ground fault

35 P short-circuit (encoder)

36 M short-circuit

37 Wire break

38 No encoder supply

39-48 -

65 Configuring error/parameterization error

66 Common-mode fault

67 P short-circuit (encoder)

68 M short-circuit

69 Wire break

70 Reference channel fault

71 Measuring range violation

72 Measuring range violation

73-96 -

97 Configuring error/parameterization error

98 Ground fault

99 P short-circuit (encoder

100 M short-circuit

101 Wire break

102 Fuse tripped

103 No load voltage

104 Overtemperature

105-128 -

129 Configuring error/parameterization error

130 Common-mode fault

131 P short-circuit

132 M short-circuit

133 Wire break

134 -

135 No external load voltage

136 -

137 Connection not wired

138 Open conductor to +

139 Open conductor to -

140 Calibration error

141 Range error (underrange or overrange)

142 -

143 Open conductor of the current source

144 User calibration does not correspond to parameterization

161 Encoder wire break

162 Absolute encoder fault

163 Error pulses incremental encoder or no zero mark

164 Voltage monitoring encoder

165 Voltage monitoring 15V

166 Voltage monitoring digital output

167 -

168 Operating error

169 Error in machine data

170 Error set point

171 Error in cam data

172 Travel range monitoring

173 Operating range monitoring

174 Actual value monitoring

175 Target intakes monitoring

176 Target range monitoring

193 Analog input hardware fault

194 -

195 Analog input wire break (4-20mA only)

196 -

197 Analog input measuring range violation (underrange)

198 Analog input measuring range violation (overrange)

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