National Instruments GPIB-232CT Manuals

Manuals and User Guides for National Instruments GPIB-232CT. We have 1 National Instruments GPIB-232CT manual available for free PDF download: User Manual

National Instruments GPIB-232CT User Manual

National Instruments GPIB-232CT User Manual (216 pages)

MicroGPIB RS-232 to IEEE-488 Controller

Brand: National Instruments | Category: Controller | Size: 3.52 MB

Table of Contents

Table of Contents
11
Description of the GPIB-232CT
20
Figure 1-1. the GPIB-232CT
20
Introduction
20
What Your Kit Contains
21
Optional Equipment
22
GPIB-232CT Specifications
23
Table 1-1. Electrical Characteristics
23
Table 1-2. Environmental Characteristics
23
Figure 1-2. the GPIB-232CT Front Panel
24
Table 1-3. Physical Characteristics
24
The GPIB-232CT Front Panel
24
Table 1-4. LED Descriptions
25
Figure 1-3. the GPIB-232CT Rear Panel
26
The GPIB-232CT Rear Panel
26
Figure 1-4. the RS-232 Connector and Signal Designations
27
The RS-232 Port
27
Figure 1-5. the GPIB Connector and Signal Designations
28
The GPIB Port
28
Choosing between S Mode or G Mode
29
Introduction
29
The GPIB-232CT Modes of Operation
29
Figure 2-1. Personal Computer Controlling a GPIB Plotter
30
Figure 2-2. a Serial Printer Connected to a GPIB Controller
30
Installation
31
Installation and Configuration in S Mode
31
Step 1: Inspection
31
Step 2: Verify the Voltage Requirement
32
Step 3: Configure the Operating Parameters
32
Figure 3-1. S Mode Switch Settings
33
Set Configuration Switches
33
Default Settings for Configuration Switch
34
Figure 3-2. Factory Default Settings for Switch U22
34
Step 4: Connect the Cables
35
Step 5: Power on the Unit
35
Example of a Programming Message
36
Programming in S Mode
36
Programming Message Format
36
Programming Messages
36
Example of a Programming Message with Data String
37
Function Names
37
How Messages Are Processed
37
Abbreviations for Arguments
38
Function Argument Delimiters
38
GPIB Address
38
Numeric String Argument
39
Status Information
39
GPIB Read and Write Termination Method (END and EOS)
40
Serial Port Error Handling
40
S Mode - Default Settings
41
Table 4-1. Serial Port Characteristics
41
Table 4-2. GPIB Characteristics
41
GPIB Functions
42
List of S Mode Functions by Group
42
Table 4-3. I/O Functions
42
Table 4-4. Bus Management Functions
42
Table 4-5. GPIB Initialization Functions
43
Table 4-6. Serial Poll Functions
43
Table 4-7. Low-Level Controller Functions
44
Table 4-8. Parallel Poll Functions
44
General Use Functions
45
Serial Port Functions
45
Table 4-10. General Use Functions
45
Table 4-9. Serial Port Initialization Functions
45
Alphabetical List of S Mode Functions
46
Table 4-11. GPIB-232CT Functions
46
Chapter 5 S Mode Functions

48
- Points to Remember
  48
- Cac - Become Active Controller
  50
- Caddr - Change the GPIB Address of the GPIB-232CT
  51
- Clr - Clear Specified Device
  53
- CMD - Send GPIB Commands
  55
- Echo - Echo Characters Received from Serial Port
  58
- Eos - Change/Disable GPIB EOS Termination Mode
  59
- Table 5-1. Data Transfer Termination Methods
  59
- Eot - Enable/Disable END Message on GPIB Writes
  62
- Gts - Go from Active Controller to Standby
  64
- Ibcl - Enter Ibcl Operating System
  66
- ID - Identify System
  68
- Ist - Set or Clear Individual Status Bit
  69
- Loc - Go to Local
  70
- Onl - Place the GPIB-232CT Online/Offline
  72
- Pct - Pass Control
  73
- Ppc - Parallel Poll Configure
  74
- Ppu - Parallel Poll Unconfigure
  76
- Rd - Read Data
  78
- Rpp - Request (Conduct) a Parallel Poll
  81
- Rsc - Request System Control
  83
- Rsp - Request (Conduct) a Serial Poll
  85
- Rsv - Request Service/Set or Change Serial Poll Status Byte
  88
- Sic - Send Interface Clear
  89
- Spign - Ignore Serial Port Errors
  91
- Sre - Set (or Clear) Remote Enable
  93
- Stat - Return GPIB-232CT Status
  94
- Table 5-2. GPIB Status Conditions
  95
- Table 5-3. GPIB Error Conditions
  96
- Table 5-4. Serial Port Error Conditions
  97
- Tmo - Change or Disable Time Limit
  100
- Trg - Trigger Selected Device(S)
  102
- Wait - Wait for Selected Event
  104
- Table 5-5. Wait Mask Values
  105
- Wrt - Write Data
  107
- Xon - Change Serial Port XON/XOFF Protocol
  110
- Installation and Configuration in G Mode
  112
- Installation
  112
- Step 1: Inspection
  112
- Step 2: Verify the Voltage Requirement
  113
- Step 3: Configure the Operating Parameters
  113
- Set Configuration Switches
  114
- Figure 6-1. G Mode Switch Settings
  114
- Table 6-1. Primary Address Configurations
  115
- Example Settings for Configuration Switch
  117
- Step 4: Connect the Cables
  117
- Figure 6-2. Example Settings for Switch U22
  117
- Step 5: Power on the Unit
  118
- Programming in G Mode
  119
- Programming Messages
  119
- Programming Message Format
  119
- Example of a Programming Message
  119
- How Messages Are Processed
  120
- Function Names
  120
- Function Argument Delimiters
  120
- Abbreviation for Argument
  120
- Status Information
  121
- Communicating with the GPIB-232CT and the Serial Device
  121
- Address of the GPIB-232CT
  121
- Address of the Serial Device
  121
- Addressing Terminology
  121
- The GPIB-232CT and Serial Device as Listener
  122
- The GPIB-232CT and Serial Device as Talker
  123
- GPIB Read and Write Termination (END and EOS)
  124
- Serial Port Transmission
  124
- G Mode - Default Settings
  125
- Table 7-1. GPIB Characteristics
  125
- Table 7-2. Serial Port Characteristics
  125
- List of G Mode Functions by Group
  126
- GPIB Configuration Functions
  126
- Table 7-3. GPIB Configuration Functions
  126
- Serial Port Configuration Functions
  127
- General Use Functions
  127
- Table 7-4. Serial Port Configuration Functions
  127
- Table 7-5. General Use Functions
  127
- List of G Mode Functions in Alphabetical Order
  128
- Operation of the GPIB-232CT with a Serial Device
  128
- Table 7-6. GPIB-232CT Functions
  128
- Serial Poll
  129
- Service Request
  129
- Table 7-7. Serial Poll Response Byte
  129
- Parallel Poll
  130
- Trigger
  130
- Local
  130
- Control
  130
- Device Clear
  131
Chapter 8 G Mode Functions

132
- Points to Remember
  132
- Echo - Echo Characters Received from Serial Port
  134
- Eos - Change/Disable GPIB EOS Termination Mode
  136
- Table 8-1. Data Transfer Termination Methods
  136
- ID - Identify System
  138
- Onl - Place the GPIB-232CT Online/Offline
  139
- Spign - Ignore Serial Port Errors
  140
- Spset - Change Serial Port Parameters
  141
- Srqen - Enable/Disable Setting of SRQ
  143
- Table 8-2. SRQ Mask Bits
  143
- Stat - Return GPIB-232CT Status
  145
- Table 8-3. GPIB-232CT Status Conditions
  146
- Table 8-4. GPIB Error Conditions
  147
- Table 8-5. Serial Error Conditions
  148
- Xon - Change Serial Port XON/XOFF Protocol
  151
- Multiline Interface Messages
  153
- Multiline Interface Messages
  156
- Interface Message Reference List
  156
- Status Bits
  159
- GPIB Error Codes
  164
- Serial Port Error Codes
  168
Appendix C the Serial Connection

170
- Rs-232C
  170
- Interfacing the GPIB-232CT to a DCE
  172
- Figure C-1. DTE-To-DCE Cable Configuration
  172
- Figure C-2. Minimum DTE-To-DCE Cable Configuration
  173
- Interfacing the GPIB-232CT to a DTE
  174
- Figure C-3. Null Modem Cable Configuration
  174
- Buffering and Handshaking
  175
- Figure C-4. Minimum Null Modem Cable Configuration
  175
- Hardware Handshake
  176
- Xon/Xoff
  177
Appendix D Operation of the GPIB

178
- Types of Messages
  178
- Talkers, Listeners, and Controllers
  178
- The Controller-In-Charge and System Controller
  180
- GPIB Signals and Lines
  180
- Data Lines
  181
- Figure D-1. GPIB Cable Connector
  181
- Handshake Lines
  182
- NRFD* (Not Ready for Data
  182
- NDAC* (Not Data Accepted
  182
- DAV* (Data Valid
  182
- Interface Management Lines
  182
- ATN* (Attention
  182
- IFC* (Interface Clear
  183
- REN* (Remote Enable
  183
- Srq
  183
- EOI* (End or Identify
  183
- Physical and Electrical Characteristics
  183
- Figure D-2. Linear Configuration of the GPIB Devices
  184
- Figure D-3. Star Configuration of GPIB Devices
  185
- Related Document
  186
Appendix E Common Questions

187
- S Mode
  187
- G Mode
  189
Appendix F Parallel Polling

190
- Operation
  190
- Configuration
  191
- The Parallel Poll
  192
- Disabling Parallel Poll Response
  192
- S Mode Example
  192
Appendix G Setting Switches

194
Appendix H Sample Programs

198
- S Mode Sample Programs
  198
- Using an HP 7475A Plotter with a Terminal
  199
- Getting Ready to Program
  199
- Figure H-1. S Mode, 8 Data Bits, 1 Stop Bit, no Parity, 19200 Baud
  199
- Programming Steps
  200
- Step 1. Stat Function
  200
- Step 2. Serial Port Functions
  200
- Step 3. GPIB Initialization Functions
  201
- Step 4. Communicate with Rd and Wrt Functions
  201
- Using an HP 7475A Plotter with an IBM PC
  202
- Getting Ready to Program
  202
- Figure H-2. S Mode, 7 Data Bits, 1 Stop Bit, no Parity, 9600 Baud
  202
- Programming Steps
  203
- Step 1. Stat Function
  203
- Step 2. Serial Port Functions
  203
- Step 3. GPIB Initialization Functions
  203
- Step 4. Communicate with Rd and Wrt Functions
  204
- Programming a Tektronix 2445 Oscilloscope from an Apple IIC
  205
- Getting Ready to Program
  205
- Figure H-3. S Mode, 8 Data Bits, 1 Stop Bit, no Parity, 9600 Baud
  205
- Programming Steps
  206
- Step 1. Stat Function
  206
- Step 2. Serial Port Functions
  206
- Step 3. GPIB Initialization Functions
  206
- Step 4. Communicate with Rd and Wrt Functions
  206
- G Mode Sample Programs
  207
- Getting Ready to Program
  208
- Programming Steps
  209
- Step 1. Stat Function
  209
- Step 2. GPIB Initialization Functions
  209
- Step 3. Serial Port Initialization Functions
  209
- Step 4. Communicate with Plotter
  210
- IBM PC (with GPIB-PC) to Serial Printer
  211
- Getting Ready to Program
  211
- Programming Steps
  212
- Step 1. Stat Function
  212
- Step 2. GPIB Initialization Functions
  212
- Step 3. Serial Port Initialization Functions
  212
- Step 4. Communicate with the Printer
  212

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