Cyberhawk-200M Installation
-
19 of 22 -
Doc. No: 202-003318-610 Rev A01
COMMUNICATION:
The
Cyberhawk-200M
-xP is equipped with a RS485 Port and optionally with a Powersmiths
COMSERVER providing an Ethernet connection with RS485 Port.
RS485 Port
Wire and connect the external RS485 network to the R/T+ (B), R/T-(A) and COM (common)
terminals observing polarity as illustrated in the figure below. Terminate and ground as required
per the Network configuration using the diagram provided as a guide. Refer to the table following
for RS485 characteristics.
Typical RS485 Network Connection
Notes:
-
The standard RS485 Port is directly supported by the Meters which will each have unique
Modbus addresses (1 – 247) plus additional set parameters (Baud rate, Parity, Stop bits etc.).
-
A 100 ohm `soft`
ground
is included in the Cyberhawk-200M.
Table of Standard RS485 Characteristics
Parameter
Description
Connections
Com (Shield), R/T – (A), R/ T + (B)
Connector
Screw Clamp; 12 to 24 ga. wire
Baud Rates
1.2k, 2.4k, 4.8k, 9.6k, 19.2k, 38.4k
Data Format
1 Start, 8 Bit,, no/even/odd parity, 1 Stop Bit
Max. Range
1,200 m
Max. Load
1/5, (160 max. transceivers on same bus)
Isolation
> 1.5kV (1 min)
Wiring (typical)
300V, 75°C, #18 – 24 ga.
Termination (external)
120 ohms
Protocol
Modbus RTU
