6247G/6247C DC Voltage Current Source/Monitor Operation Manual
6.2.2 Precautions when Using GPIB
6-3
6.2.2
Precautions when Using GPIB
1. Do not use longer connection cables or bus cables than necessary. Operations using 20 m or longer
cables are not guaranteed. ADC CORPORATION offers the following standard bus cables.
2. Bus cables have piggyback connectors. A piggyback connector has both a male connector and a
female connector by itself. The male and female connectors can be stacked on top of each other.
Be sure to fix the piggyback-type bus cables with clamping screws. Also, do not stack three ore more
connectors to prevent breakage.
3. Check the power requirements, grounding conditions, and setting conditions of each device before
turning on all the devices connected to the bus. If any device is not turned on, the system may not
operate correctly.
4. Turn off all the devices on the bus before connecting or disconnecting the GPIB cables. Check that
the chassis of the devices on the bus are connected to each other and to the ground before connecting
or disconnecting any GPIB cables.
5. If an ATN request interruption occurs during transfer of messages between the devices, the ATN has
priority and the previous status is cleared.
6. When using the Talk Only mode, do not connect the controller.
7. An error occurs if a single command transmission exceeds 256 characters.
8. Retain the REN line at Low for 5 ms or longer following the transmission of a command.
Table 6-2 Standard Bus Cable
Name
Length
408JE-1P5
0.5 m
408JE-101
1 m
408JE-102
2 m
408JE-104
4 m