IS215VCMIH2CC GE MKVI Bus Master Controller Card

Description:

The VCMI is the communication interface between the controller and the I/O boards, and the communication interface to the system control network, known as IONet. VCMI is also the VME bus master in the control and I/O racks, and manages the IDs for all the boards in the rack and their associated terminal boards. The two versions of VCMI boards are as follows:

This figure shows three simplex system configurations with local and remote I/O using the VCMI. Multiple I/O racks can be connected to IONet, each rack with its own VCMI board. To increase data throughput for applications requiring low latency, a second IONet port on the VCMI can be used as a parallel IONet as shown in the lower portion of the figure.
Features
The VCMI architecture is based on the 32-bit Texas Instruments TMS320C32 digital signal processor (DSP). The main hardware features are:
· Interface to VME bus
· Three 10Base2 Ethernet ports
· One RS-232C serial port
· One parallel port
· Power system monitoring
· Board and cable ID reading
· Processor watchdog timer
IONet - Communications Interface
Communication between the control modules (control racks) and interface modules (I/O racks) is handled by the VCMIs. In the control module the VCMI operates as the IONet master while in the interface module it operates as an IONet slave. VCMI establishes the network ID, and displays the network ID, channel ID, and status on its front panel.

Physically, IONet communication is 10Base2 Ethernet using thin wire RG-58 coax cable. The VCMI supports all three ports simultaneously.

The VCMI serves as the master frame counter for all nodes on the IONet. Operation frames are sequentially numbered and all nodes on IONet operate in the same frame This ensures that selected data is transmitted and operated on correctly.

Input Data Collection - Simplex Systems
When used in an interface module, the VCMI collects input data from the I/O boards and transmits it to the control module over IONet.

In the control module, as packets of input data are received from various racks on the IONet, the VCMI transfers them through the VME bus to the Mark VI controller for processing.

Frequently Asked Questions:

1.What is the IS215VCMIH2CC?
It is the MKVI Bus Master Controller Card by General Electric (GE).
2.What is the Processor of the IS215VCMIH2CC model?
Texas Instruments TMS320C32 32-bit digital signal processor
3.How To install the VME Board IS215VCMIH2CC?
Directly plug one VME board for simplex or three PAIC I/O packs for TMR into the terminal board connectors

Datasheet Link:

IS215VCMIH2CC GE MKVI Bus Master Controller Card PDF Datasheet