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MUCM

Simple MUCM Set-Up: Modbus Settings:

Figure 2.1 HyperTerminal Setup Device Screen Figure 2.2 Zapreg32 of Slave 1 Screen The set-up parameters may be reviewed and modified by connecting a terminal or emulator such as a HyperTerminal to MUCM port 1. The setup device screen will bring up prompts (figure 2.1) for the Modbus slave address and SmartBob Slave address. The MUCM will answer Modbus RTU requests on its RS-232 port that are directed to a Modbus slave address. The setup device screen allows you to add, edit, remove, and perform a test measurement on all the SmartBob II remotes in the system. The program Zapreg32.exe (figure 2.2) may be used to quickly test the Modbus settings on the MUCM. The data from a given SmartBob is presented as holding registers (4x). Register 1 is a read/write and any value written to this register will cause the Smartbob II remotes to take a new reading. Registers 2 through 66 are read only 16-bit unsigned integers that provide data on the SmartBob. Several data points have an implied decimal place to give greater precision for the reading. For example, register 6 indicates depth to product in feet divided by 10. A value of 24 indicates 2.4 ft.
Drop 247 Drop 248 Drop 249 Modbus Master Bobs 1 through 32 Bobs 33 through 64 Bobs 65 through 96

Communication Adapters Multiple MUCMs

MUCM MUCM MUCM Optional communication adapter tophats are available in the following protocols. This flexibility allows the MUCM to be used in a variety of applications.
Ethernet DeviceNet™ Modbus Plus™ Profibus™ With multiple MUCMs a single Modbus master can operate up to 239 SmartBob II Remotes.

Specifications:

Dimensions: Standard MUCM base module; 4.9” wide x 5.6” tall x 1.6” deep (124 x 142 x 41 mm) Power Requirements: 9-30 VAC or VDC; 5 Watts max. RS-232 Port: Modbus RTU or Modbus ACCII Slave; 2400, 4800, 9600, or 19200 baud; EVEN or NONE parity; 7 or 8 data bits; 1 stop bit; Push-to-Talk RTS/CTS handshaking RS-485 Port: 2 Wire RS-485 Multidrop; SmartBob II protocol. Switches: 1 Memory Protect/Run/Halt for each port, run/load switch; recessed reset switch. Indicators: LED Rx and Tx for each serial port, LED run indicator for each program; LEDs for power and ready; Four LEDs under user program control. Program Storage: 2 program storage areas; 128 Kbytes of flash memory each. Real Time Clock: Maintained by external power when present or by internal capacitor for up to one week when unpowered. Operating Conditions: 25 to 120 degrees F operating temperature. Humidity up to 90% noncondensing.
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