Installation and Maintenance Instructions for Serial Communication Adapters Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281, Fax: 203-385-0402 www.ashcroft.com All sales subject to standard terms and conditions of sale. © 2012 Ashcroft Inc.
Serial Communication Adapters Instruction Manual Disclaimer The information contained in this document is subject to change without notice. Ashcroft makes no representations or warranties with respect to the contents hereof, and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose. Registered Trademarks DproM is a registered trademark of Ashcroft Inc. Modbus® is a registered trademark of Schneider Automation Inc.
Serial Communication Adapters Instruction Manual SAFETY INFORMATION ! CAUTION: Read complete instructions prior to installation and operation of the equipment. WARNING: Risk of electric shock. WARNING Hazardous voltages could exist on serial communication wiring networks. Installation and service should be performed only by trained service personnel.
Serial Communication Adapters Instruction Manual Table of Contents ORDERING INFORMATION --------------------------------------------- 2 SAFETY INFORMATION ------------------------------------------------- 3 SPECIFICATIONS ---------------------------------------------------------- 5 101B224-06 DM61 RS-232 Serial Adapter -------------------------------- 5 101B224-07 DM61 RS-485 Serial Adapter -------------------------------- 5 101B224-08 DM61 USB Serial Adapter ------------------------------------ 5 101B224
Serial Communication Adapters Instruction Manual SPECIFICATIONS 101B224-06 DM61 RS-232 Serial Adapter COMPATIBILITY CONNECTORS EIA-232 PC compatible 9-pin D subminiature connector (DB9) and RJ45 (adapter to meter) CABLE 6' (1.8 m) standard Cat5e cable provided with adapter DISTANCE Adapter to DM61 meter: 6' (1.
Serial Communication Adapters Instruction Manual 101B224-09 USB to RS-232 Converter COMPATIBILITY CONNECTORS DRIVERS DISTANCE POWER USB 1.1, USB 2.
Serial Communication Adapters Instruction Manual SERIAL COMMUNICATIONS OVERVIEW RS-232, RS-422, and RS-485 are standard interfaces approved by the Electronic Industries Alliance (EIA) for connecting serial devices. In EIA terms, the device (e.g. meter) that connects to the interface is called a Data Communications Equipment (DCE) and the device to which it connects (e.g. the computer) is called a Data Terminal Equipment (DTE).
Serial Communication Adapters Instruction Manual The cabling used for an RS-422 or RS-485 serial communications network should always be a high quality cable such as Belden 8162 or Alpha 6203C. A two-wire system requires two twisted pairs, and a fourwire system requires three twisted pairs (the extra twisted pair is needed for the signal ground).
Serial Communication Adapters Instruction Manual 101B224-06 DM61 RS-232 SERIAL ADAPTER Description The 101B224-06 converts the serial output of the DM61 meter to an unbalanced, full-duplex RS-232 signal. The RS-232 port has a female DB9 connector with pins 2 (RX output), 3 (TX input), and 5 (Signal Ground). Pins 7 (RTS) and 8 (CTS) are tied together, and pins 1 (CD), 4 (DTR), and 6 (DSR) are tied together. The adapter is powered by the DM61 meter M-Link connection.
Serial Communication Adapters Instruction Manual Installation Figure 1 shows the connection of a DM61 meter to a PC using the 101B224-06 serial adapter. The 101B224-06 has an RJ45 connector to connect the Cat5e cable and a PC compatible 9-pin D subminiature connector (DB9). The DB9 can be connected directly to the PC or by using a standard serial extension cable. RS-232 Adapter Serial Cable (Not Provided) Cat5e Cable (Provided) Figure 1.
Serial Communication Adapters Instruction Manual Connections A Cat5e cable is provided to connect the DM61 meter to the 101B224-06 serial adapter. DM61 Serial Communication Address (serial) The DM61 meter is factory set to address 001. To change the DM61 meter address: 1. Press and hold the Menu button for three seconds to access Advanced Features menu of the meter. 2. Press Up arrow until Serial (SEriaL) menu is displayed and press Enter, Addres is displayed. 3.
Serial Communication Adapters Instruction Manual 101B224-07 DM61 RS-485 SERIAL ADAPTER Description The 101B224-07 converts the serial output of the DM61 meter to balanced, full or half-duplex RS-485 signals. The 101B224-07 has a removable screw terminal connector for the RS-485 terminals which includes Transmit Data (DO) and (/DO), Receive Data (DI) and (/DI), and Signal Ground. The adapter is provided by the DM61 meter M-Link connection.
Serial Communication Adapters Instruction Manual Installation Figure 2 shows the connection of a DM61 meter to a single-point fullduplex RS-485 device using the 101B224-07 serial adapter. The 101B224-07 has an RJ45 connector to connect the Cat5e cable and a screw terminal connector to connect to the RS-485 network. Figure 3 shows the connection of several DM61 meters with 101B224-07 serial adapters to a multi-point half-duplex RS-485 network.
Serial Communication Adapters Instruction Manual Figure 2. RS-485 Full-Duplex Four-Wire Wiring Notes: 1. 2. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations. Use shielded cable, twisted-pairs plus ground. Connect ground shield only at one location.
Serial Communication Adapters Instruction Manual Figure 3. RS-485 Half-Duplex (Multi-Drop) Two-Wire Wiring Notes: 1. 2. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations. Use shielded cable, twisted-pair plus ground. Connect ground shield only at one location.
Serial Communication Adapters Instruction Manual Connections A Cat5e cable is provided to connect the DM61 meter to the 101B224-07 adapter. Figure 4 details the wiring connections from the 101B224-07 to a fullduplex RS-485 four-wire network device. 101B224-07 to RS-422/485 Serial Converter Connections RS-485 FullDuplex Device 101B224-07 RS-485 Adapter DO DI DO DI DI DO DI DO Figure 4.
Serial Communication Adapters Instruction Manual 101B224-08 DM61 TO USB SERIAL ADAPTER Description The 101B224-08 DM61 to USB Serial Adapter allows for direct connection of a DM61 Series meter to the USB port of a PC. Installation Figure 22 shows the connection of a DM61 Series meter to a PC using a 101B224-08 DM61 to USB Serial Adapter. Figure 22.
Serial Communication Adapters Instruction Manual 101B224-09 USB TO RS-232 CONVERTER Description The 101B224-09 USB to RS-232 Converter allows for direct connection of a serial device to the USB port of a PC. Installation Figure 23. shows the connection of a Trident meter to a PC using a 101B224-09 USB to RS-232 Converter, PDA7232 RS-232 adapter, and the PDA7420 Modular Cable. RS-232 Adapter RS-232 Converter Cat5e Cable (Provided) Figure 23.
Serial Communication Adapters Instruction Manual TROUBLESHOOTING Symptom Check/Action Power LED is off 101B224-06 or 101B224-07: 1. Check modular cable connection 2. Check power to meter 101B224-08: 1. Check USB connections 2. Try different USB port 3. Check USB port with other device Check: 1. Serial adapter and cable 2. Serial protocol selected 3. Meter address and baud rate 4. Software address and baud rate Remove all unnecessary cables and meters.
Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281, Fax: 203-385-0402 www.ashcroft.com All sales subject to standard terms and conditions of sale. © 2012 Ashcroft Inc.
