The QUCM-OE can be configured for several applications, many of which can occur simultaneously. The QUCM-OE enables:

The QUCM-OE has added a number of new functions to the MSTR function of the PLC. The standard MSTR (MB+ or Ethernet) has been limited to reading and writing 4x Holding Registers in external devices. Niobrara has now added the ability to read 0x, 1x, and 3x as well as write 0x values. These new functions may be used with any Modicon programming software package.

• Read 0x Coils
• Write 0x Coils
• Read 1x Input Bits
• Read 3x Input Registers
• Read QUCM Serial Port Configuration
• Write QUCM Serial Port Configuration
• Reset QUCM to Factory Defaults
• Set QUCM IP Address
• Set QUCM IP Subnet Mask
• Set QUCM IP Default Gate

Ethernet has been the network of choice for information for some time now. Its widespread use has made it very affordable and readily available. The information technology departments of many companies already have in place an Ethernet infrastructure that includes cabling, repeaters and hubs, as well as network management and support. The QUCM-OE is ideal for companies that require information from their Modbus® devices and who would like to leverage their existing Ethernet infrastructure. Information from these devices is readily available to the entire enterprise since any Ethernet device with a Modbus/TCP driver can access or control Modbus devices with the help of the QUCM-OE.

Serial master devices can communicate with serial slave devices that are too far away to be reached through serial cabling. The plant-wide Ethernet can be used to carry communication between these devices.

An additional benefit of serial devices connected via Ethernet is that multiple master devices can have access to every slave device. This is beyond the capabilities of most serial communication networks and their protocols.

The QUCM-OE allows master devices to use its serial ports as gateways to the high-speed network. A serial Modbus-master device, such as an HMI, building automation system, SCADA package or programming terminal, connected to a QUCM-OE port can access devices on the Ethernet network and/or the PLC itself. A user with a laptop can connect to a QUCM-OE serial port to program the local PLC or Modicon PLCs anywhere on the Ethernet network.

Messages from a device on one serial port can be routed to devices on the other serial port. If the protocols are different, the QUCM acts as a protocol converter, allowing devices with different protocols to talk to each other. The QUCM can transfer data between slave devices on the two serial ports using its mailbox registers and the Autoscan feature. Serial ports are switchable to either RS-232 or RS-422/485 mode.

The Ethernet port of the QUCM-OE can be configured to speak the SY/MAX 802.3 protocol as well as Modbus/TCP. SY/MAX 802.3 is the protocol used by the SY/MAX 450 and 650 processors. With this protocol, the QUCM-OE can be used to create a SY/MAX serial to SY/MAX Ethernet bridge. All of the configuration, statistic and mailbox registers appear as processor equivalent registers to SY/MAX devices.

The Ethernet port with SY/MAX 802.3 protocol will accept messages with more than 3 drops, so it will support SFW-390 software and messages from devices other than 450 and 650 processors, such as other bridge devices. The QUCM-OE may be used as a replacement for the discontinued 140NOE311 SY/MAX NOE.

The QUCM-OE allows a serial port to act as both a Modbus and RNIM master simultaneously. This is useful for adding Modbus devices to previously existing RNIM radio networks.

The Ethernet port of the QUCM-OE has an RJ-45 jack for 10BaseT Ethernet media. Conversion to other media, such as ThinWire or fiber optic cable requires the use of an external media converter or a connection on an Ethernet hub. Both of these items are widely available.

The Ethernet port can be configured to speak either or both Modbus/TCP and SY/MAX 802.3. The most important protocol for Schneider Electric. customers is Modbus/TCP.

There are three kinds of internal registers: mailbox registers, configuration registers and statistic registers. All of the registers appear as 4x registers to Modicon devices and they are available from any port on the QUCM. The first 2048 registers are user-defined mailbox registers. The Quantum PLC can I/O map up to 32 input registers and 32 output registers when the QUCM is used in a local, remote or distributed rack (maximum of 30 input registers in a distributed rack). When Master devices need to exchange information, each can write data into the mailbox registers for the other to read.

Supplied with the QUCM is PC software that allows configuration of the unit through any communication path between the PC and the QUCM; these configurations can then be saved to disk. The software can make use of a serial or Ethernet connection. The QUCM's firmware is stored in Flash memory and can be updated through a serial port. The QUCM comes with one-year free firmware upgrades, a one-year warranty, a user manual and configuration software on a 3.5" diskette.

The QUCM-OE is the replacement for the QUCM-LE and QUCM-SE. The QUCM-O also replaces the QUCM-L and QUCM-S. The latest version of QRPCTCP.QCC supports all models of the QUCM. The one significant change in the factory defaults between the -O and the -L and -S units is that the -O units default to be an OPTION module while the older units default to an I/O module. If a configuration file is fetched from an old unit and loaded into a new unit the two will be directly interchangeable. The QUCM-O and -OE units also have a faster processor than the previous modules.

SPECIFICATIONS:

Dimensions: Standard Quantum register module. 1.59" wide by 9.84" tall by 4.09" deep (40 x 250 x104 mm). Approximately 12 oz. (340 g.) net. All connectors and indicators are front mounted except the Quantum bus card edge connector on the back.

Power Requirements: From Quantum bus; 5 VDC, 550 mA max (350 mA typical).

Operating Conditions: 0 to 60 degrees C; humidity up to 90% noncondensing; pressure altitude -200 to +10,000 feet MSL.

Serial Ports: Two data I/O ports. 50*, 75‡, 110, 134.5, 150‡, 300, 600, 1200, 1800‡, 2400, 4800, 7200*, 9600, or 19,200‡ baud. NOTE: If one port is set to a baud rate marked (*), the other port cannot be set to a baud rate marked (‡). 7 or 8 data bits; odd, even or no parity; 1 or 2 stop bits. Switchable from RS-232 to RS-422/485 (2-wire or 4-wire). RJ-45 female connectors, Modicon Micro pinout.

Serial Port Modes: Each I/O port can independently operate in any of the following modes: Modbus RTU (Host or Gate); Modbus ASCII (Master or Slave); SY/MAX; Net-to-Net; PNIM; RNIM (Master or Slave); PLogic; Chevron; Peripheral; Multidrop; IDEC; Gateway; Transparent; Share; Transfer.

Ethernet Port: 10BaseT, RJ-45 connector. Modbus/TCP and SY/MAX 802.3 compatible. E-Peer compatible.

Indicators: LED indicators for Module Active, Ready, Run, Fault, RN1 (application running), RN2 (auto-transfer running); Ethernet Transmit, Receive, Link, Collision; Serial Port Transmit (2), Receive (2). 14 total indicators.

Mailbox Registers: 2,048 4x register and 32 3x registers. Non-volatile. PLC can map up to 32 input and 32 output registers in local or remote I/O racks and up to 30 in, 32 out in distributed I/O racks.

Setup Registers: 3x and 4x registers accessible through any port; stored in non-volatile RAM.

ORDERING INFORMATION

The QUCM-OE is available as:

 QUCM-OE with 2 switchable RS232/RS485 ports, 1 10BaseT Ethernet port

QUCM Accessories:

MM1	RS232 cable for configuring the QUCM.
DDC2I	Optically isolated RS232<>RS485 converter, DIN rail mount.
BB85	DIN rail mount RS485 screw terminal.
QXBP	Single slot rack with built in power supply for stand alone installations.