文档介绍：375调试费希尔定位器(375 debug Fisher locator)
Using 375 municator (hand manipulator) to check DVC6020 quick start
The connection of one, 375 and HART circuit can municated with any connection terminal of control room, instrument field or circuit in 375. Parallel connection of 375 and proper connector with instrument or load impedance, HART connection is insensitive to polarity. In order to ensure that 375 can be positive
Often work, the field device terminal (here refers to DVC) at least 4mA current and 12VDC voltage, HART
The impedance in the circuit shall not be less than 250 ohms.
375 there are three ports at the top. Two of them are red and one is black. The two red ports are the positive electrodes of each protocol. Black port is mon end of the two protocols. The protective cover device ensures that only one pair of ports are exposed at any time. See below. At the same time, there are multiple tags to indicate which port corresponds to which protocol. The DVC used on the anti surge valve is HART.
Two. Start type 375 municator
After the HART loop is connected, the DVC signal (using the signal sender or the PLC/DCS power supply card) is sent,
In order to ensure munication, DVC should have at least 4mA current, 12VDC voltage. Hold down the key until the
multi function LED indicator flashes, indicating that the device is powered on (about two seconds). The open / critical position is shown in figure 2-2.
During startup, 375 will automatically install all the upgrade software on the system card. pletion, the main menu of 375 will be displayed, and you can choose HART Application (start HART application) from it
2 、 FOUNDATION Fieldbus Application (startup Foundation Fieldbus application)
3, Setting (configuration / view settings) 4, Listen For PC (enter PC control mode)
5, ScratchPad (start the ScratchPad application)
Three, shutdown, when the application opens, the open / key is disabled. Before using the open / key, you must return to the main menu of 375.