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Description of the DP Functions, Data, and Error Codes
DP Base Programming Interface for CP 5613/CP 5614
C79000-G8976-C108-01
179
Byte 1 (Stationstatus_1)
Each bit in byte 1, the "stationstatus_1“ byte has a special meaning.
Bit Name and Meaning
7
Diag. Master_Lock
- The DP slave has already had parameters
assigned by a different master, in other words, the local master
cannot currently access this slave.
6
Diag. Prm_Fault
- This bit is set by the slave if the last parameter
assignment frame was incorrect (for example wrong length, wrong
ident number, invalid parameters).
5
Diag. Invalid_Slave_Response
- This bit is set as soon as an
implausible response is received from an addressed DP slave.
4
Diag. Not_Supported
- This bit is set as soon as a function is
requested that is not supported by the slave (for example operation in
the SYNC mode although the slave does not support this).
3
Diag. Ext_Diag
- This bit is set by the DP slave. If the bit is set, there
must be a diagnostic entry in the slave-specific diagnostic area
(Ext_Diag_Data). If the bit is not set, there may be a status message
in the slave-specific diagnostic area (Ext_Diag_Data). The meaning of
the status message must be negotiated with each specific user
program.
2
Diag. Cfg_Fault
- This bit is set when the configuration data last sent
by the master do not match those determined by the DP slave, in
other words, when there is a configuration error.
1
Diag. Station_Not_Ready
- This bit is set when the DP slave is not
yet ready for the productive phase.
0
Diag. Station_Non_Existent
- The DP master sets this bit, if the DP
slave is not obtainable on the bus. If this bit is set, the diagnostic bits
contain the status of the last diagnostic message or the initial value.
The DP slave always sets this bit to zero.
- SIMATIC NET 1
- DP Base Programming Interface 1
- Purpose of the Manual 3
- Validity of the Manual 3
- Guide to the Manual 3
- Contents 5
- Procedure 10
- Overview of PROFIBUS DP 13
- The Advantages of DP 15
- Distributed I/Os 16
- Node Classes 16
- DP Master Class 1 16
- DP Master Class 2 16
- DP Slave 17
- Output Data 18
- Input Data 18
- DP application 20
- Initialization 21
- Parameter Assignment 21
- Configuration 21
- State of the Slave 21
- Diagnostics 22
- 2.6 Modes of the DP Master 23
- Setting the Operating Mode 24
- 2.8 Reliability of DP 27
- Purpose of Control Frames 28
- Creating Groups 28
- Control Commands 29
- 2.10 Typical Sequences in DP 30
- Receiving Diagnostic Data 31
- DP/DPC1 prog 32
- DP-V1 Master Class 2 (DPC2) 33
- 3.1 Functions and Data 38
- Using the DP Database 40
- Configuring Slave Data Areas 40
- Activating the Watchdog 40
- The Read Consistency Option 42
- Reducing Load on the PC CPU 43
- Possible Hardware Events 43
- 3.5 Fast Logic 44
- Properties of Hardware Events 45
- Properties of Software Events 45
- 3.7 Typical Sequences 47
- Shutdown Sequence 48
- Elements of a Polling Cycle 50
- Initializing the Semaphores 53
- Using Hardware Events 54
- Clearing the Semaphores 55
- Using Semaphores for DPC1 56
- Clearing a Semaphore 57
- Software) 58
- Productive Operation 59
- Polling Productive Operation 61
- Initializing the Semaphore 62
- Clearing the Semaphore 63
- Multiple CP Operation 64
- Multiple Application Programs 64
- Multiple CPUs in one PC 64
- Error Codes 65
- Conventions in the Text 66
- Header Files 67
- Auxiliary Functions 69
- Fast Logic 69
- 4.1.2 DP_start_cp 70
- 4.1.3 DP_reset_cp 71
- 4.1.4 DP_open 72
- 4.1.5 DP_get_pointer 73
- 4.1.6 DP_release_pointer 75
- 4.1.7 DP_close 76
- 4.1.8 DP_get_err_txt 78
- 4.1.9 DP_set_mode 79
- 4.1.10 DP_slv_state 81
- 4.1.11 DP_read_slv_par 83
- 4.1.12 DP_global_ctrl 85
- 4.1.13 DP_ds_read 87
- 4.1.14 DP_ds_write 90
- 4.1.15 DP_read_alarm 93
- 4.1.16 DP_alarm_ack 96
- 4.1.17 DP_get_actual_cfg 99
- Parameters 100
- Return Value 101
- 4.1.18 DP_enable_event 102
- C79000-G8976-C108-01 103
- Table continued on next page 105
- 4.1.19 DP_disable_event 107
- 4.1.20 DP_get_result 108
- 4.1.21 DP_get_cref 111
- 4.1.22 DP_init_sema_object 112
- 4.1.23 DP_delete_sema_object 114
- 4.1.24 DP_fast_logic_on 115
- 4.1.25 DP_fast_logic_off 116
- Administrative Functions 118
- Initialization Functions 118
- Standard DP Functions 119
- 4.2.2 DPS_open 120
- 4.2.3 DPS_close 124
- 4.2.4 DPS_start 125
- 4.2.5 DPS_stop 126
- 4.2.6 DPS_get_baud_rate 127
- 4.2.7 DPS_get_gc_command 129
- 4.2.8 DPS_get_state 131
- 4.2.9 DPS_set_diag 133
- 4.2.10 DPS_get_ind 135
- 4.2.11 DPS_set_resp 140
- 4.2.12 DPS_calc_io_data_len 142
- Overview of the Existing Data 143
- Consistent Reading 144
- Example of Consistent Reading 144
- Reading without Consistency 145
- General Notes 147
- Writing is always consistent 148
- Example of Consistent Writing 149
- Uses of the Slave State 152
- Overview 159
- Example of Access 159
- Example of Activation 162
- Example of Deactivation 163
- 4.4 Error Codes 167
- Meaning of the Errors 170
- Description 171
- Error_Decode = DP V1 172
- Error_Code_1 173
- Order of the Slave Data 175
- Format of Data Words 175
- Explanation 176
- Possible Length 177
- Byte 1 (Stationstatus_1) 179
- Byte 2 (Stationstatus_2) 180
- Byte 3 (Stationstatus_3) 180
- Byte 4 (Diag. Master_Add ) 180
- Bytes 5 and 6 (Ident_Number) 181
- Structure 182
- Byte 1 (Header Byte) 182
- Extensions) 183
- Byte 2 (Alarm_Type Variant) 184
- Byte 2 (Status_Type Variant) 184
- Byte 3 (Slot Number Variant) 184
- Byte 5-63 186
- Content of the Data Field 188
- Channel Number 190
- Type of Diagnostics 191
- Definition 193
- Byte Structure 194
- Slave Type 195
- Alarm_Mode 196
- Add_Sl_Flag 196
- Byte 1 (Station_status) 198
- Byte 7 (Group_Ident) 199
- Byte 8 (DPV1_Status_1) 199
- Byte 9 (DPV1_Status_2) 200
- Bytes 11 to n 201
- Overview of the Structure 202
- Structure of an ID Byte 203
- Length Bytes 204
- CP 5613/CP 5614? 207
- Where to Get Help 217
- Documentation 218
- Who to Contact 218
- Common Questions 218
- SIMATIC Training Center 221
- Glossary 227
- User watchdog 237
- Watchdog 237
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