Yaskawa VS-616G5 InterBus-S Control Card SI-R - Manual (Page 9)

VS-616G5 Option Instruction Manual: InterBus-S Control Card SI-R Page 9
The local bus is for use inside the control cabinets. The local bus carries signals,
power, and control to the local bus I/O modules.
The installation remote bus is used mainly in IP65 or IP67 environments and is a
remote bus with 24VDC power for remote installation I/O modules.
The scan time of the InterBus-S system depends on the various factors and increases
linearly with an increasing number of I/O points. However, due to the efficiency of the
InterBus-S protocol, the scan time is predominantly determined by the number of I/O
points.
The SI-R option card for the VS-616G5 is a remote bus device only.
Controlling the Inverter Via InterBus-S
The option board is a 4 word InterBus-S remote bus slave unit with a 1 word PCP
channel. This means that the board can exchange data in two ways:
1. Through the InterBus-S fast cyclic data (3 words) of 16 bit data
2. Through PCP (Peripheral Communication Protocol)
Cyclic data
The board supports 3 words of fast cyclic data. The data exchanged supports the
following functions and parameters:
Input data
(IBS master
⇒ VS-616G5)
* 1770 hex = 60.00Hz
Table 5: Basic Remote Bus Specifications
Maximum length of remote bus segment 400m
Maximum bus cable length between:
Host and first remote bus module
Two remote bus modules
Host and last remote bus module
—
400m
400m
12.8 km
Transmission rate 500kbits/s
Transmission medium RS-422
Word 0 Word 1 Word 2 Word 3
Fast data w0 Fast data w1 Fast data w2 PCP
Not used Run Operation Signals
(See Table 6)
Speed command
(1hex = 0.01Hz)*
Used by PCP protocol