Com 1, Com 2, Com 3 – Basler Electric DECS-400 User Manual

Page 173: Irig, Regulation accuracy, Avr mode

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9369700990 Rev R

161

Com 1

Interface ........................................ RS-485
Connection Type ........................... Rear-panel screw terminals
Terminals....................................... D5 (A), D6 (B), D7 (C)
Protocol ......................................... ASCII
Data Transmission ........................ Half duplex
Baud .............................................. 1200 to 19200
Data Bits ........................................ 8
Parity ............................................. None
Stop Bits ........................................ 1

Com 2

Interface ........................................ RS-485
Connection Type ........................... Rear-panel screw terminals
Terminals....................................... D9 (A), D10 (B), D11 (C)
Protocol ......................................... Either Modbus

™ RTU or Modbus TCP/IP

Data Transmission ........................ Half duplex
Baud .............................................. 4800 to 19200
Data Bits ........................................ 8
Parity ............................................. None
Stop Bits ........................................ 2

Com 3

Interface ........................................ 10BASE-T Ethernet per IEEE 802.3
Connection Type ........................... Rear-panel RJ-45
Data Transfer

Medium ................................... Category 5 twisted-pairs, copper conductors, 100 m (328 ft) maximum

Rate ........................................ 10 Mb/s

Connections

Modbus TCP/IP ................ 4, maximum

BESTCOMS ..................... 1, maximum

J1

Interface ........................................ FCC part 68 approved modem
Connection .................................... Rear-panel RJ-11

IRIG

Standard ........................................ 200-98, Format B002
Input Signal ................................... Demodulated (dc level-shifted digital signal)
Logic High Level ............................ 3.5 Vdc, minimum
Logic Low Level ............................ 0.5 Vdc, maximum
Input Voltage Range ..................... –10 Vdc to +10 Vdc
Input Resistance ........................... Nonlinear, approximately 4 k

Ω at 3.5 Vdc, 3 kΩ at 20 Vdc

Terminals....................................... D1 (IRIG +), D2 (IRIG–)

Regulation Accuracy

AVR Mode

Voltage Regulation………………...

±0.2% over the load range, at rated power factor and constant
generator frequency

Steady-State Stability ....................

±0.1% at constant load and frequency

DECS-400

Specifications

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