MMS6823 Vibration monitoring data acquisition card

Description

Overview

Essential details：MMS6823 Vibration monitoring data acquisition card

DESCRIPTION

The MMS6823 is a standard 19 “frame module that is placed in the MMS6000 cabinet. It is equipped with 8 RS485 serial ports to realize the data collection function from MMS6000 module, 1 10M/100M industrial Ethernet network communication port to complete the data communication function with MMS6851 server and 1 RS232 serial port to communicate with DCS/DEH according to MODBUS protocol. Redundant power supply is used.
2.1.2 Hardware Configuration Parameters
l CPU: Geode GX3
l Memory: 512MB
l CF card: 1 GB
l1 RS232 serial port (COM1)
l8 RS485 serial ports (COM2 to COM9), shared serial ports interrupted, with read/write indicator l1 USB ports
l2 10M/100M industrial Ethernet
l Support keyboard and mouse
l VGA graphics card
l Internal PC104 bus interface
l Redundant 24V standard power port
2.1.3 Module Front Panel
The front panel consists of two digital tubes, one red and one green. When the system is powered on, the green Array light blinks for a period of time, indicating that the system is starting and initializing. When the system starts
If the green light is on, it indicates that the system is working normally. If the green light is off and the red light is on, it indicates that the system status is abnormal. Check whether the system configuration information of the module is set correctly and the hardware communication is connected
The cable connection is incorrect, and the RS485 address and baud rate of the MMS6000 module are correctly set.

MMS6823R 9100-00001-06

Product parameter

APPLICATION

The MMS6823 continuously accesses the MMS6000 module connected to the bus through the RS485 bus to realize the real-time data acquisition function, and converts the received feature value data, alarm and module status data into standard MODBUS and TCP/IP protocol output.
2.2.1 Data Collection function
MMS6823 is connected to RS485 bus of MMS6000 steam turbine monitoring and protection system through RS-485 communication port to obtain real-time data of each measurement module of MMS6000 system. Because the data is taken directly from the measurement module, there is no intermediate processing, so it has an unparalleled accuracy of other sampling methods. The system adopts synchronous integration
Data is collected periodically. The sampling number is optional. The maximum sampling number is 1024. Vibration data and related process parameters for start/stop (transient) and steady state can be collected. The system obtains dynamic signals from tile vibration and shaft vibration, and static signals from axial displacement, eccentricity and differential expansion measurement modules. Get the device’s speed and key trust number from the speed module.
Data acquisition, communication service program using multi-thread technology, each MMS6000 module channel data read and write operations are all parallel, each serial port by a separate thread to complete the read and write work, to ensure that the data between the channels is synchronized.
Serial ports number 2 to 9 are used to connect the MMS6000 series modules, where each serial port will be connected to a maximum of 12 modules, each module has two channels, so that a maximum of 8×12×2 = 192 data channels can be connected.
2.2.2 Data Transmission Function
Data output is divided into Modbus and TCP/IP communication. The real-time data is sent to the MMS6851 server through the LAN according to TCP/IP communication protocol, and the received real-time data is converted into the standard MODBUS protocol (RTU or ASCII) for the communication of DCS or DEH system.
Modbus protocol: The first serial port RS232 is the Modbus communication port. MODBUS output can be MODBUS RTU or MODBUS ASCII protocol. The protocol mode can be set by the Modbus field in the XML configuration file. The eigenvalue data and alarm and module status data received from the MMS6000 can be accessed by DCS, DEH and other systems connected to the MMS6823.
TCP/IP protocol: MMS6823 converts the received eigenvalue data, waveform data, alarm and module status data into standard TCP/IP protocol, which can be output through Ethernet TCP/IP interface. These data can be accessed and displayed by the connected vibration analysis system. The TCP/IP network interface is a standard RJ45 port and uses a standard network connection cable. MMS6823 can automatically detect the TCP connection status, due to software or hardware reasons to disconnect, the listening thread can immediately detect, and make the corresponding instructions. TCP ports allow a client connection to listen, complete system configuration, debugging, and data communication. The IP address of the MMS6823 can be flexibly set as required.

Shipping

Superiority products MMS6823 Vibration monitoring data acquisition card