Rockwell-automation 5370 Color CVIM Communications Manual Manual de usuario Pagina 135
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- Tabla de contenidos
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
Chapter 5
Using the RS–232 Ports
5–67
err |= 0x01; /* no DLE on send */
if (!err)
{
ch = _bios_serialcom(_COM_RECEIVE,portnum–1,0);
err = ch & COMMFLAGS;
if (err || ((ch & 0xFF) != ACK)) /* Mask character to 8 bits
*/
err |= 0x02; /* no ACK on send */
}
} while (err && (––retry > 0)); /* if any error, retry */
return (err);
}
/* Recieves a message into buffer pointed to by msg & places
length in *len. If the checksum is invalid or a timeout occurs,
sends NAK and attempts to re–receive up to 2 more times.
Returns zero on success or nonzero if an error occurs. */
int get_message (portnum, msg, len)
int portnum; /* Serial port number */
unsigned char *msg; /* Pointer to message buffer */
int *len; /* Pointer to return length of message */
{
int good_string = 0;
int message_started = 0;
int ch=0, err=0, retry=4;
int length = 0;
unsigned char *msg_start_ptr, df1_bcc=0;
msg_start_ptr = msg;
while ( !good_string && retry )
{
ch = _bios_serialcom(_COM_RECEIVE,portnum–1,0);
err |= ch & COMMFLAGS;
if (( ch & 0xFF ) == DLE )
{
ch = _bios_serialcom(_COM_RECEIVE,portnum–1,0);
err |= ch & COMMFLAGS;
switch( ch & 0xFF )
{
case STX:
message_started = 1;
break;
case ETX:
message_started = 0;
ch = _bios_serialcom(_COM_RECEIVE,portnum–1,0);
err |= ch & COMMFLAGS;
- Bulletin 5370 Color CVIM 1
- • identify a hazard 2
- • avoid the hazard 2
- • recognize the consequences 2
- Using This Manual 3
- Using the Remote I/O Link 3
- Using the RS–232 Ports 4
- Using the Pyramid 5
- Integrator Backplane 5
- Appendix A 6
- Appendix E 6
- Communications Manual 7
- Table of Contents 7
- Tables (continued) 8
- Figures (continued) 9
- Using this Manual 10
- Overview of this Manual 11
- Intended Audience 11
- Related Publications 12
- How to Use this Manual 13
- Nomenclature 13
- Trademarks 13
- Introduction 14
- How Does the Host Device 15
- Read Configuration/Results 15
- Information? (cont’d) 15
- Remote I/O (Node Adapter) 16
- RS–232 Ports 16
- Local I/O 16
- Pyramid Integrator Backplane 16
- What Types of Information 17
- Discrete Bit Information 17
- Results Blocks 18
- Configuration Blocks 18
- Communications Cables 18
- Memory Addressing 18
- Memory Addressing (cont’d) 19
- Using Local I/O 21
- Equipment Connections 22
- Planning Output 22
- Line Assignments 22
- Using the Output Line 23
- Planning Sheet 23
- Planning Sheet (cont’d) 24
- Using Output Signal 27
- Timing Data 27
- Timing Data (cont’d) 28
- Line Connections 31
- Connections to RS–232 Ports 31
- (2801–N27 Interface Box) 31
- Connections to RS–232 Port 32
- (2801–N21 Interface Box) 32
- Color CVIM Module I/O 33
- Interface Box Connections 33
- Connections to 34
- 2801–JMB Interface 34
- Remote I/O Communications 39
- Performed over the 43
- Remote I/O Network? 43
- Obtaining Inspection 44
- Result Information 44
- Accessing Discrete 45
- Bit Information 45
- Bit Information (cont’d) 46
- • Checking for valid results 49
- Example Program For 50
- Accessing/Setting 50
- Discrete Bit Data (cont’d) 50
- Discrete Bit Data (Cont’d) 51
- • Results Blocks 52
- • Configuration Blocks 52
- Chapter 4 53
- Configuring Results Block 6 54
- Converting Results Data 55
- Transferring Configuration 57
- Blocks (cont’d) 58
- Example Program for 58
- Accessing Results Data 58
- Example Program for Accessing 59
- Results Data, Cont’d 59
- Accessing Configuration Data 61
- Example 6008–SI Program 64
- ASCII and DF1 Protocols 70
- • Force local I/O On or Off 72
- • 8 Data Bits 73
- • 1 Stop Bit 73
- • No Parity 73
- ASCII Protocol 74
- • Symbols: 75
- • Numbers 0 through 9 75
- • Data Field– Contains data 76
- >L[CR] 80
- Read Configuration Blocks 82
- Read Inspection Results 84
- Save Configuration 87
- Chapter 5 88
- Figure 5.6 88
- Trigger Operation 93
- Write Configuration (W) 93
- Write Configuration (WC) 93
- Command Summary (cont’d) 96
- Explanation of ASCII 97
- Programming Example 97
- ASCII Programming Example 99
- DF1 Protocol 101
- What is DF1? 101
- DF1 Character Set 101
- Command Structure 102
- Command Structure (cont’d) 103
- ACK/NAK, BCC Characters 103
- Block Check Character 104
- (cont’d) 104
- Deactivate Forces 105
- Echoing Data 106
- Enable/Disable Outputs 107
- Forcing Local I/O 107
- Forcing Local I/O (cont’d) 108
- Loading Configurations 109
- Lock Command 110
- Read Output Status 110
- Read Output Status (cont’d) 111
- Read Configuration 111
- Block Command 111
- Block Command (cont’d) 112
- Read Results Command 115
- Save Command 118
- Select Image Displayed 119
- 0B 14 05 120
- Set Configurable Results 121
- Set/Read Configurable 122
- Statistics 122
- • Block signature 123
- Trigger Operation Command 124
- Unlock Command 124
- Write Configuration Blocks 125
- Command Summary 128
- Command Summary (cont‘d) 129
- DF1 Programming Example 130
- Chapter Objectives 138
- What Information can 138
- Host Designation 138
- What Functions can be 139
- Performed Over the Backplane? 139
- Color CVIM Module 139
- Configuration Instructions 139
- Obtaining Inspection Result 140
- Information Using a PLC–5/250 140
- Manipulating Configuration 141
- Data Using a PLC–5/250 141
- Sample PLC–5/250 Program 143
- Chapter 6 144
- Information Using a MicroVAX 150
- Information Processor 150
- Overview 151
- Fractional Notation 152
- Fractional Notation (cont‘d) 153
- 32 Bit Integer Format 154
- Discrete Bit Results Bits 155
- Appendix B 156
- Table B.1 156
- Discrete Bit Inputs 156
- Discrete Bit Inputs (Cont’d) 157
- Discrete Bit Outputs 173
- Table B.3 174
- Discrete Bit Outputs (Cont’d) 175
- Numerical Results Data 180
- Results Block Overview 181
- Block Transfer Signature 181
- Results Block #1 182
- Results Block #1 (cont’d) 183
- Results Block #2 185
- Results Block #2 (cont’d) 186
- Results Block #3 187
- Results Block #3 (cont’d) 188
- Results Block #4 190
- Results Block #4 (cont’d) 191
- Results Block #5 192
- Results Block #5 (cont’d) 193
- Results Block #6 194
- Results Block #6 (cont’d) 195
- Appendix C 198
- Statistics Block 199
- Configuration Data 200
- Configuration Block #1 201
- Appendix D 203
- Table D.2 203
- Configuration Blocks 4–35 205
- Configuration Block 36 206
- Configuration Blocks 37–39 207
- Configuration Blocks 40–45 208
- Configuration Blocks 46–109 210
- Configuration Blocks 110–205 212
- Configuration Blocks 206–213 214
- ASCII Conversion Table 215
- Bulletin 5370 Color CVIM 216
- Glossary 216
- characters 216
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