DIN Rail Products
Square D Products
Serial Port Expander
Description The SPE4 has been a best seller for over a decade and is now available in two versions: the SPE4-3D with five RS-422/485 serial ports, and the SPE4-3S with four RS-232 ports and one RS-422 serial port.
The SPE4-3D is a drop-in replacement for the SPE4-1D and the SPE4-2D. The SPE4-3S is a drop-in replacement for the SPE4-1S and the SPE4-2S.
The SPE4 now has several new features previously unavailable:
Modbus Port Expander
Modbus DCS to POWERLOGIC
Serial Protocol Converter
PLC Programming Access Point
Register Rack Interface
SY/MAX Port Expander
The serial ports support 17 separate modes including all of the Square D and Modicon serial protocols. Some modes allow devices with different protocols to exist on the same physical media. Each port can be independently configured. Each serial port has an auto-scan table of 48 entries.
On the SPE4-3D ports 1-4 support 4-wire RS-422 point-to-point or 2-wire or 4-wire RS-485 multidrop. On the SPE4-3S ports 1-4 support point-to-point RS-232. On both models port 0 supports 4-wire RS-422 point-to-point and provides +5 VDC power for a converter.
The SPE4 is in the form factor of a SY/MAX rack module. When used in a SY/MAX rack it has a register interface to the PLC but can also be used as a stand-alone solution by including a Niobrara NRK2 single slot rack.
The configuration of the SPE4 is stored in registers available from any port. The configuration can be changed "on-the-fly" without rebooting the module.
The configuration registers are stored in capacitor-backed RAM. For long-term module storage the configuration can be written to EEPROM "on-the-fly". The module comes with a CD containing a manual and SPE4SW32 configuration software for the PC. Firmware upgrades are available free of charge for one year after date of purchase. The SPE4 carries a one-year warranty.
The SPE4 is available as:
Dimensions: Standard SY/MAX register module. 1.5" wide by 13" tall by 6.5" deep. Approximately four pounds net. Rugged welded steel enclosure with baked on finish. All serial connectors and indicators are on the front. The SY/MAX bus card edge connector is on the back.
Power Requirements: From SY/MAX bus or NRK2: 5 VDC, 1.5 A
Serial Port 0: RS-422 SY/MAX compatible. Same pinout as SY/MAX processor. Slide-lock posts. 134.5 to 14,400 baud. Even, odd, or no parity. 1 or 2 stop bits. 7 or 8 data bits. Provides +5VDC.
SPE4-3D Serial Ports 1-4: SY/MAX compatible pin-out. Four RS-422/RS-485 serial ports. 50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14,400 or 19,200 baud; 7 or 8 data bits; odd, even or no parity; 1 or 2 stop bits. Selectable checksum (BCC or CRC) supported in some modes. SY/MAX compatible DB9 female connectors with slide-lock posts. When used in RS-485 mode, ports are 2- and 4-wire compatible. Handshaking. Auto-scan and Auto-transfer enabled. Configurable Bias and Termination.
SPE4-3S Serial Ports 1-4: PC COM port compatible pin-out. Four RS-232 serial ports. 50, 75, 110, 134.5, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14,400 or 19,200 baud; 7 or 8 data bits; odd, even or no parity; 1 or 2 stop bits. Selectable checksum (BCC or CRC) supported in some modes. PC COM port compatible DB9 male connectors with threaded nuts. Handshaking. Auto-scan and Auto-transfer enabled.
Serial Port Modes: Any serial port can independently operate in any of the following modes: SY/MAX, Net-to-Net, Peripheral, PLogic, IDEC, Modbus Host (RTU - Master and Slave), Modbus Gate (RTU - master and slave), Modbus ASCII, Gateway, Transparent, Share, Chevron, or Dual Slave. Ports 1-4 can also be configured for PNIM, RNIM Master, RNIM Slave, or Multidrop.
Mailbox Registers: 2048 processor equivalent registers addressed 1 through 2048. Any number of these may be rack addressed as needed for user applications. Any rack addressed register can be a PLC input or a PLC output as required by the application.
Module Configuration: Module configuration is stored in registers in capacitor-backed RAM and can be changed "on the fly". For long-term storage, configuration can be stored to EEPROM "on the fly".
Indicators: Transmit and Receive LEDs for ports 1-4. Active, Error, and Busy LEDs for the Module. Eleven total indicators.
Operating Conditions: 0 to 50 degrees C operating temperature; -40 to 80 degrees C storage. Humidity up to 90% noncondensing. Pressure altitude -200 to +10,000 feet MSL.
Buttons & Switches: Clear button erases RAM and restores module configuration from EEPROM, FLASH, or Factory Defaults. Download switch allows for module firmware download.