IPDB › China Industry › Instruments & Meters
China, Chinese Profibus Bd, Ramsey Analog I/O Board Communication Board1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Weighing Measuring ApparatusWeight IndicatorRamsey Analog I/O Board Communication BoardProfibus-Dp Board Mt2000/Mt9000 Analog I/O Board4 20mA Output Board Ramsey
Ramsey Electric (Beijing) Co., Ltd.
Preview:
Product Description Product DescriptionI/O BoardCurrent (Requires Jumper Selection) z Input Range (mA) z 0 to +20 mAz +4 to 20 mA z Converted Display (Volts) z 0 to +5 V z +1 to +5 Vz Jumpers J1 and/or J2 are used to select 250 ohm resistance for the Current inputs. z Input impedance: 100 k nominal (differential)z Maximum usable input voltage: 106% of full scale z Non-isolated voltagez Max. non-destructive input voltage: 12V peak Current Outputs (Two Channels) Here are the specifications. z Optically isolated z Isolated power source z Output Range (mA) z 0 to 20 mA z +4 to 20 mA z Voltage output by adding an internal dropping resistor. z Resistive load: 800 ohms max. z Capacitive load: No limitz Field wiring: Connections are made to the terminal strip on end of the Analog I/O Board. Note that connector is removable for ease of termination. Board DiagramCommunication Boardz Type: Conforms to RS-232C, RS-485/422, and 20 mA standards; supports 2 and 4 wire multi-drop in RS-485. 20 mA loop is passive ONLY.Interfacing: RS-485 supports 2-wire or 4-wire multi-drop networking; RS-232C provides support for modem.Data rate: 300 to 19200, operator selectable from the keypad.Data format: Asynchronous, bit-serial, selectable parity, data length, and stop bits.Cable length: 50 feet maximum (RS-232C)Cable length: 50 feet maximum (RS-232C)4000 feet maximum (RS-485 and 20 mA) For more information, see "Appendix C-Communication Protocols." Installation To install the COMM board(s), do the following.1. Select the jumper positions on the COMM board for the desired communication standard. Below is a table which summarizes the jumper positions for selection of the electrical interface. The jumper locations are shown below.2. Open the Micro-Tech wall mount enclosure and turn power off at the mains, or remove panel mount enclosure from the panel and remove top cover allowing access to the motherboard.3. Remove the field mating connector. Wire the connector per the supplied field-wiring diagram at the end of the manual.4. Remove the hex head mounting screw from the connector end of the COMM board. 5. Insert the COMM board in any available expansion slot on the motherboard.Profibus-DP Board This is an optional board. Profibus is a typical master/slave communication where the main PLC is the master or scanner, and the Micro-Tech device is a slave. The connection is EIA RS 485 through a 2-wire twinax Siemens cable.Profibus-DP is the performance-optimized version specifically dedicated to time-critical communication between automation systems and distributed peripherals. It is typically used to transfer I/O images between a main PLC and remote devices (sensors, actuators, transmitters, etc.). In this case, it will be used to transfer (read and write) blocks of data. The Profibus-DP interface board contains the Siemens SPC3 ProfibusDP controller ASIC. The SPC3 controller is an integrated circuit provided by Siemens that handles the interface between the Micro-Tech slave and the master. Detailed Photos
Purchasing Request
Note: Send your purchase request, and we will screen suppliers or manufacturers for you free of charge...