Baker Hughes Panametrics PanaFlow LC, Руководство пользователя

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3.5 Inputs and outputs
3.5.1 Modbus port settings
The XMT 1000 meter supports digital communications using the MODBUS/RTU protocol, with 3-wire RS-485 as the physical
layer interfaces. Baud rate can be specified from 2400 to 115,200 bits per second (bps), with selectable parity, and number of
stop bits (Default = 115200, Even, 1 Stop Bit). Use steps as in section “Log-in and Primary Pages” to navigate to the Input/Output
settings page. Then highlight [Communication Port] and press [ENTER] . Figure 56 below, shows the options available.
Input/Output
Analog Output (Std)
Communication Port
Address
Parity
Baud Rate
Stop Bits
Digital Output (Std)
Parity
None
Address
or
1
Address
Option Comm (Slot 1)
Odd
Stop Bits
1
2
Baud Rate
19200
Baud Rate
2400
4800
9600
19200
Communication Port
Address
Baud Rate
Stop Bits
Parity
Communication Port
Address
Baud Rate
Parity
Stop Bits
Communication Port
Address
Baud Rate
Parity
Stop Bits
38400
57600
115200
or
or
or
Communication Port
[ ]
[ ]
[ ] UNDO
MOVE [ ]
SAVE
ALTER
1
Operator Access or Higher
Even
Address
Figure 56: Modbus port setting
3.5.2 Standard analog output
The XMT1000 has one Analog Output and one Digital Output in Standard configuration.
3.5.2a Setting up analog output
The XMT1000 meter has one Analog Output in standard configuration. For additional Analog outputs Optional I/O boards may
be purchased. Use steps as in section “Log-in and Primary Pages” to navigate to the Input/Output settings page.
1. Then highlight [Analog Output (Std)] and press [ENTER].
2. If you do not wish to connect an Analog Output, you should turn Analog Output selection to OFF.
3. If you are connecting an Analog Output, choose 4-20mA option. The Figure 57 below, shows the options available.
4. Select the Measurement to be sent out on the 4-20mA output, followed by the [Base Value] and [Full Value] selection.
Refer Table 3 to see measurement options available for Analog output.
5. Select [Error Handling]. Refer to section 3.5.2.2 to choose an option that suits your needs.
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