PRECISION DIGITAL Helios PD2-6200, Инструкция по эксплуатации

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Helios PD2-6200 Analog Input Flow Rate/Totalizer
Instruction Manual
12
RS-485 Serial Communications
Compatibility EIA-485
Connectors Removable screw terminal connector
Max Distance 3,937' (1,200 m) max
Status
Indication Separate LEDs for Power (P), Transmit
(TX), and Receive (RX)
Modbus
®
RTU Serial
Communications
Slave Id 1
– 247 (Meter address)
Baud Rate 300 - 19,200 bps
Transmit
Time Delay Programmable between 0 and 199 ms
Data 8 bit (1 start bit, 1 or 2 stop bits)
Parity Even, Odd, or None with 1 or 2 stop bits
Byte-To-Byte
Timeout 0.01
– 2.54 second
Turn Around
Delay Less than 2 ms (fixed)
Note: Refer to the Helios Modbus Register Tables located at
www.predig.com for details.
Digital Input (F4)
Function Reset total, remote operation of front-panel
buttons, acknowledge/reset relays, reset
max/min values. See
Function Keys &
Digital I/O Available Settings on page 47 for
a complete list of capabilities.
Contacts
3.3 VDC on contact. Connect normally
open contacts across F4 to COM
Logic Levels Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
Digital Inputs & Outputs
Function Terminals provided for remote operation of
all four programming / operation buttons
(use
PDA2364-MRUE control station).
Other uses include acknowledge/reset
relays and reset max/min values. See
Function Keys & Digital I/O Available
Settings
on page 47 for a complete list of
capabilities.
Channels 4 digital inputs & 4 digital outputs
Digital Input
Logic High 3 to 5 VDC
Digital Input
Logic Low 0 to 1.25 VDC
Digital Output
Logic High 3.1 to 3.3 VDC
Digital Output
Logic Low 0 to 0.4 VDC
Source
Current
10 mA maximum output current
Sink Current 1.5 mA minimum input current
+5 V Terminal To be used as pull-up for digital inputs only.
Connect normally open push buttons
5 V & DI 1-4.
•
DO NOT use +5 V terminal to power external
devices.
MeterView Pro Software
Availability Download directly from meter or from
www.predig.com/download_software
System
Requirements Microsoft ® Windows ® XP/Vista/7/8/10
Communications USB 2.0 (for programming only)
(Standard USB A to USB Type B)
RS-485 to USB converter
(programming, monitoring, and data
logging)
Configuration Configure meters one at a time
Power USB port provides power to the meter.
DO NOT apply AC or DC power to the
meter while the USB port is in use.