RMC75E CPU Module

The RMC75E CPU module provides the processing power of the RMC75 motion controllers with Ethernet communications. The RMC75E has a USB Monitor port for convenient connection to a PC running RMCTools (the RMC75S and RMC75P use an RS-232 serial port for the same purpose). The RMC75E supports auto-negotiation for 10/100Mbps and full/half duplex and also supports auto-crossover.

Features

One 10/100 Mb/s Ethernet port
One USB Monitor Port
Supported Ethernet Protocols
- EtherNet/IP
- PROFINET
- Modbus/TCP
- CSP(also called DF1 over Ethernet)
- FINS/UDP(Omron)
- Procedure Exist (Mitsubishi)
- Delta Motion Control Protocol

Part Number

The part number of the RMC75E is RMC75E. Like all RMC75 CPU modules, the RMC75E can only be ordered with an axis module.

For example, RMC75E-AA1 is an RMC75E with a one-axis AA1 module.

Specifications

General
Weight	236 g + 16 g (connector)
Ethernet Interface
Hardware Interface	IEEE 802.3 for 100BASE-T (twisted pair)
Data Rate	10/100 Mbs
Duplex	Full/Half Duplex
Features	Auto-negotiation, Auto-crossover (MDI/MDI-X)
Connector	RJ-45
Cable	CAT5, CAT5e or CAT6, UTP or STP
Configuration Parameters	IP address, subnet mask, gateway address, enable/disable autonegotiation
Configuration methods	BOOTP, DHCP, or static
Ethernet Protocols
Application protocols	EtherNet/IP, PROFINET, Modbus/TCP, CSP (DF1 over Ethernet), FINS (Omron) Procedure Exist (Mitsubishi), DMCP (Delta Motion Control Protocol)
Framing Protocol	Ethernet II
Internet Protocol IP	IP (includes ICMP, ARP, and Address Collision Detection)
Transport Protocols	TCP, UDP
Other protocols	LLDP
USB Monitor Port Interface
Connector	USB "B" receptacle
Data Rate	Full-speed (12 Mbps)

LEDs

Controller LED

This bi-color (red/green) LED has the following states:

State	Description
Steady Off	No power.
Steady Green	RUN Mode
Flashing Green (Slow)	PROGRAM Mode
Flashing Green (Fast)	Updating Flash or a controller restart is pending.
Flashing Red (Uniform on/off)	The RMC is in the loader. This should occur briefly when the controller is powered up. If this occurs during normal operation, an error has occurred in the controller and it must be reset. Cycle power to the RMC75 to reset it. Causes: Power Interruption In certain cases, a power interruption to the RMC may cause it to go into the loader. Even a very short interruption, such as 20 msec, can cause problems. This type of interruption cannot be measured with a standard multimeter. For accurate power supply verification, use an oscilloscope or similar high-speed monitoring device. Firmware Bug Certain firmware bugs will cause the RMC to go into the loader. If this occurs, and power interruptions have been ruled out, contact Delta Technical support.
Flashing Red (Pattern)	The LED will flash 1, 2, or 3 times, pause and then repeat the pattern. All of these patterns indicate that the RMC failed a self-test of the RAM subsystem during startup. This is a non-recoverable major fault. The module will likely need to be shipped back to Delta for repair.
Steady Red	Non-Recoverable major fault. That is, the module cannot boot at all, not even into the loader. The module will likely need to be shipped back to Delta for repair. Some things to try to get it into the Loader (to be done at the direction of technical support) include removing all expansion and axis modules, and setting the Force to Loader jumper under the axis module.

Communication LEDs

These LEDS are located below the Controller LED on a gray background. These LEDs do not convey 10/100, FDX/HDX, or Collision information. The user will have to rely on their switch's LEDs or the RMCTools Communication Statistics to determine the state of those affairs.

Link/Act LED

The Link/Act LED reflects the status of the physical Ethernet connection between the RMC and the device on the other end of the Ethernet cable. If the Link LED is not on or is not blinking when you expect it to be, see the Ethernet Link/Act LED topic for troubleshooting information.

State	Description
Off	The Ethernet link is down
Flashing Green	The Ethernet link is up, with activity
Steady Green	The Ethernet link is up, no activity

Net LED

State	Description
Steady Off	No power, or no IP address configured.
Steady Red	Duplicate IP Address detected.
Flashing Red	IP address configured and in use, and a controlling EtherNet/IP I/O connection has timed out and not been re-established.
Flashing Green	IP address configured and in use, no EtherNet/IP or PROFINET connections are currently established, and there is no timed-out controlling EtherNet/IP I/O connection.
Steady Green	IP address configured and in use, at least one EtherNet/IP or PROFINET connection is currently established, and there is no timed-out controlling EtherNet/IP I/O connection.

Note:
The Monitor Port does not affect any LEDs on the RMC75.

Startup LED Test

When the RMC75E powers up, the LEDs listed below go through these states, with a 250 msec delay between each step:

CPU LED	Net LED
Green	Off
Red	Off
Green	Green
Green	Red
Green	Off

Prior to the LED test, the module will run through the loader, during which time the CPU LED will be solid red. After the LED test, the firmware will continue initialization, after which time the LEDs resume their normal behaviors.