Connecting The Gp-Ib Cable - YOKOGAWA WT3000 User Manual

1.4

Connecting the GP-IB Cable

GP-IB Cable
Connection Procedure
Precautions to Be Taken When Making Connections
1-4
The GP-IB connector used on this instrument is a 24-pin connector that conforms to the
IEEE St'd 488-1978. Use a GP-IB cable that conforms to this standard.
Connect the cable as shown below.
T O
R Q
D /A
U E
O U
T P
U T
V
M A
S E
X
R I
( R
S
S P
E E
D
0 V G P
- IB
M A ( IE
E E
X
4 8 8
4 2 V
) C L
K
p k
M A
X
E T
H E
1 0 0
R N
B A
V ID E T
S E
E O
-T X
( V - O U
G A
T
)
S T
A R
T
1 0 0
- 2 4
2 0
0 V 0 V
F U A
S E M A A C
2 5 0 X
5
V
T
6 .2
• Firmly tighten the screws on the GP-IB cable connector.
• Use an NI (National Instruments) model GP-IB port (or card) on the PC side. For
details, see section 1.3.
• If a converter is used along the communication cable connecting the WT and PC (for
example, a GP-IB-to-USB converter), malfunctions can occur. For details, consult with
your Yokogawa dealer or representative.
• Multiple cables can be used to connect multiple devices. However, no more than 15
devices including the controller can be connected on a single bus.
• When connecting multiple devices, each device must have its own unique address.
• Use a cable of length 2 m or less for connecting the devices.
• Make sure the total cable length does not exceed 20 m.
• When communicating, have at least two-thirds of the devices turned ON.
• When connecting multiple devices, connect them in a star or linear configuration (see
the figure below). Loop and parallel configurations are not allowed.
When connecting or disconnecting communication cables, make sure to turn
OFF the PC and the WT3000. Otherwise, erroneous operation or damage to
the internal circuitry may result.
CAUTION
IM 760301-17E