38
When a service request is enabled
When a service request is enabled, the slave unit sends a message.
◆
See the command in section "8-7. Details of Commands".
・
From the slave unit to the master unit
ENQ Destination address
ETX
BCC1
Block check characters
(See
"
8-4-1. Message structure
"
)
Command
Information message from the slave unit
(See section
"
8-7. Details of Commands
"
.
Address 0 of the master unit that sends the message.
(@ in the ASCII7 unit code)
BCC2
・
From the master unit to the slave unit
ACK
Address of its own
Input 0, which is the address of the master unit.
(@ in the ASCII7 unit code)
NAK
Address of its own
8-5. Usage of IF-41GU/IF-41USB
8-5-1. Usage of GPIB (IF-41GU only)
・
Recommended
GP-IB controller :All GP-IB controllers made by National Instruments.
The GP-IB cards of other manufacturers will offer trouble-free operations.
However, our does not warrant their performances and may not provide
support services in some cases.
・
Delimiters
:The following delimiters of the commands sent to the PAR-A units are valid.
LF only, CR
・
LF, LF + EOI, CR
・
LF + EOI, and EOI only The delimiters of the
commands sent by the PAR-A units are CR
・
LF + EOI. It is impossible to
deactivate EOI using the IF-41GU.
8-5-2. Usage of USB
・
The vendor ID is 098F (hexadecimal).
The product ID of the IF-41GU is 1000 (hexadecimal).
The product ID of the IF-41USB is 1001 (hexadecimal).
・
The USB driver can be downloaded from the homepage show below. If it cannot be downloaded,
contact the company and our distributor.
http//www.texio.co.jp
The API and sample program may also be downloaded
.
