GE FANUC IC693CMM311 , Communications Coprocessor Module , Series 90-30

Product Description

The GE Fanuc IC693CMM311 is a Communications Coprocessor Module. This component provides a high performance coprocessor for all Series 90-30 modular CPUs. It cannot be used with embedded CPUs. This covers models 311, 313, or 323. This module supports GE Fanuc CCM communications protocol, the SNP protocol and the RTU (Modbus) slave communications protocol. It is possible to configure the module using the configuration software. Alternatively, users can opt for a default setup. It has two serial ports. Port 1 supports RS-232 applications while Port 2 supports either RS-232 or RS-485 applications. Both ports are wired to the module’s single connector. For this reason, the module has been supplied with a wye cable (IC693CBL305) in order to separate the two ports to make wiring easier.

It’s possible to use up to 4 Communications Coprocessor Modules in a system that has a CPU of 331 or above. This can only be done via the CPU baseplate. In versions before 4.0, this module presents a special case when both ports are configured as SNP slave devices. The ID value –1 in a Cancel Datagram request received at either slave device will end up cancelling all established Datagrams on both slave devices within the same CMM. This is different to a CMM711 module, which has no interaction between datagrams established on the serial ports. Version 4.0 of the IC693CMM311, which was released in July 1996, solved the issue. Older versions of the module that have this problem please contact us for repairs.

The GE Fanuc IC693CMM311 Communications Coprocessor Module works as an expansion processor that is specifically tasked with the external communication of the Series 90-30 modular CPUs, in particular with the 311, 313, or 323 models. Some of the communication protocols supported by the GE Fanuc IC693CMM311 Communications Coprocessor Module are the GE Fanuc CCM, SNP, and RTU Modbus protocols. Serial Port 2 is able to receive RS-232 or RS-485 communication as needed. A separately sold wye cable (part number IC693CBL305) is needed for the connection of the RS-232 or RS-485 protocols since both serial protocols share the same connection port. Serial Port 1 is exclusively dedicated to RS-232 applications. The operating voltage rating is 5 Volts DC and it is drawn from the PLC backplane, and the current rating is 400 milliamps.

The GE Fanuc IC693CMM311 Communications Coprocessor Module is simple to configure by using the proprietary handheld configuration tools or proprietary software on a personal computer with a PCI card. The only visible indicator LEDs present on the communications coprocessor module are the “MODULE OK” LED, and the status LEDs of both serial ports. The “MODULE OK” LED for the GE Fanuc IC693CMM311 Communications Coprocessor Module will be off if the module is not in operation, it will be on when the module is working correctly, and it will keep flashing during the power-up diagnostics. All the necessary information to control the most common communication processes is pre-loaded onto the device, so no additional customization is required to get the module up and running immediately after unpacking it.