NIC Setup and Testing
31
Maximum
of
32
devices
with a
total
cable length of
4000
feet.
Modbus RTU Master
EIA-485 9600,N,8,1
R
Maximum
of
32
devices
with a
total
cable length of
4000
feet.
R
Maximum
of
32
devices
with a
total
cable length of
4000
feet.
Figure 10. Exceeding Maximum Specifications
The maximum specification may be exceeded if measures are
taken to drive or boost the EIA-485 communication line. Two
wire EIA485 repeaters are available through the Liebert
Corpration. SiteScan’s “REPOPT” will work sufficiently for
this application. Consult the SiteScan price book for pricing
schedule and alternative solutions.
MODBUS SLAVE FUNCTIONS
Data Type
The OpenComms NIC supports data in a register block as one of
the following types: Signed integer (16 bit) / Unsigned integer
(16 bit) / Signed long (32 bit); IEEE floating-point (32 bit); Null
terminated String.
Содержание OpenComms
Страница 1: ...1 LIEBERT MONITORING GROUP INSTALLATION USER MANUAL Network Interface Card OpenComms...
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Страница 10: ...Installation 9 Figure 2 Deluxe System 3 Control Cavity Figure 3 Deluxe System 3 Chilled Water Control Cavity...
Страница 11: ...10 Installation Figure 4 ICS Control Cavity...
Страница 17: ...16 Installation Figure 7 Npower UPS Installation...
Страница 28: ...NIC Setup and Testing 27 DS13 IGM Port Transmit DS14 19 Not used Figure 8 LED Locations...
