Description

The Measurement Computing / IOTech PointScan/100 Series I/O Modules consists of a base assembly and a removable logic module. All base assemblies have a hinged door that is accessible when the logic module is removed. In 4-20 mA analog input modules (PointScan/102, /104, /108, and /130) the hinged door provides access to jumpers and/or 100 ohm replaceable shunts.

PointScan/100 modules can be powered from the same DC source that is used to power your I/O devices. No separate power supply is required. Typically, 10 to 30 VDC power is applied to terminals 24 and 25 on the base of each module.

Every PointScan/100 module has a number of LEDs. These LEDs can be useful for system diagnostics.

Every PointScan/100 Series I/O module is isolated from ground and other modules for fault-free operation. Additional levels of isolation (e.g. 500V channel to channel isolation) are provided with some modules.

Local diagnostics can be performed through any available port while the gateway is responding to messages from the other port. Diagnostic software, such as IO Toolkit, can be used to display the status of the I/O registers.

I/O modules may be unplugged from their bases, even in live systems. PointScan/100 Series I/O modules automatically self-configure from system memory. Analog I/O logic modules will automatically upload and self-adjust to user calibration settings (if any are present) from the module base.

All PointScan/100 Series analog I/O logic modules are factory calibrated over all supported ranges using a regularly maintained set of standards. Factory calibration data is stored in permanent memory in the logic module, and cannot be altered. User recalibration may be performed, but is necessary only if inaccuracy in your field device is observed, or if any of the 100 ohm input shunts are replaced with low tolerance resistors.