Abstract: Embodiments of this present disclosure include an input/output (IO) power supply module coupled to a load. The IO power supply module may include testing circuitry that couples to a voltage supply of the IO power supply module. The testing circuitry may perform an online load current test to verify performance of IO power supply module. To do so, the testing circuitry may include a current measurement circuit coupled to a switch. The current measurement circuit may receive a current via the switch while closed to determine whether the output current generated by the voltage supply is equal to a rated output current.

Abstract: Embodiments of this present disclosure include an input/output (IO) power supply module coupled to a load. The IO power supply module may include testing circuitry that couples to a voltage supply of the IO power supply module. The testing circuitry may perform an online load current test to verify performance of IO power supply module. To do so, the testing circuitry may include a current measurement circuit coupled to a switch. The current measurement circuit may receive a current via the switch while closed to determine whether the output current generated by the voltage supply is equal to a rated output current.

Abstract: An input module may include a first resistor and a second resistor coupled in series with the first resistor. The input module may also include a switch that may electrically isolate the second resistor based on a voltage output by an additional input module electrically coupled to the input module via a terminal base.

Abstract: An input module may include a first resistor and a second resistor coupled in series with the first resistor. The input module may also include a switch that may electrically isolate the second resistor based on a voltage output by an additional input module electrically coupled to the input module via a terminal base.

Abstract: An electrical relay system is configured to allow for failure detection of a relay by injecting a signal at a common contact of the relay and looking for the signal at a normally closed contact of the relay. If the relay is commanded to be “off,” or closed, and the injected signal is not detected through the normally closed contact of the relay, then the system can determine that a failure condition has occurred. In one aspect, the system can include multiple relays with the signal being injected at a common node of the relays. In another aspect, the system can include multiple controllers for controlling and/or monitoring the electrical relay system. The electrical relay system can be coupled to screw terminals for connecting to a field device as part of an industrial automation system.

Abstract: A system includes a control device that coordinates within the system to control one or more operations of industrial automation equipment. The system also includes a terminal base that couples to the control device, wherein the terminal base includes a circuit. The system further includes a first input module and a second input module that couple to the terminal base. The first input module includes a first resistor and a first measuring device, and the second input module includes a second resistor and a second measuring device. The terminal base electrically couples the first resistor to the circuit and electrically isolates the second resistor from the circuit when the first input module and the second input module are coupled to the terminal block.

Abstract: An electrical relay system is configured to allow for failure detection of a relay by injecting a signal at a common contact of the relay and looking for the signal at a normally closed contact of the relay. If the relay is commanded to be “off,” or closed, and the injected signal is not detected through the normally closed contact of the relay, then the system can determine that a failure condition has occurred. In one aspect, the system can include multiple relays with the signal being injected at a common node of the relays. In another aspect, the system can include multiple controllers for controlling and/or monitoring the electrical relay system. The electrical relay system can be coupled to screw terminals for connecting to a field device as part of an industrial automation system.

Abstract: A system includes a control device that coordinates within the system to control one or more operations of industrial automation equipment. The system also includes a terminal base that couples to the control device, wherein the terminal base includes a circuit. The system further includes a first input module and a second input module that couple to the terminal base. The first input module includes a first resistor and a first measuring device, and the second input module includes a second resistor and a second measuring device. The terminal base electrically couples the first resistor to the circuit and electrically isolates the second resistor from the circuit when the first input module and the second input module are coupled to the terminal block.

Abstract: Safety and/or reliability may he improved in industrial control systems by optimally utilizing integrated circuit elements to reduce the amount of components required and to provide cross monitoring. In one aspect, circuitry that is part of an Integrated Circuit (IC) for controlling a first channel may also be used to monitor and provide safe operation for circuitry for controlling a second channel, and the circuitry for controlling the second channel may similarly be used to monitor and provide safe operation for the circuitry controlling the first channel. Circuitry may include a windowed watchdog circuit which may be used to monitor various events of the other circuitry, and safe operation may be provided by removing power from the other circuitry to provide a safe state.

Abstract: Safety and/or reliability may he improved in industrial control systems by optimally utilizing integrated circuit elements to reduce the amount of components required and to provide cross monitoring. In one aspect, circuitry that is part of an Integrated Circuit (IC) for controlling a first channel may also be used to monitor and provide safe operation for circuitry for controlling a second channel, and the circuitry for controlling the second channel may similarly be used to monitor and provide safe operation for the circuitry controlling the first channel. Circuitry may include a windowed watchdog circuit which may be used to monitor various events of the other circuitry, and safe operation may be provided by removing power from the other circuitry to provide a safe state.

Abstract: An industrial automation monitoring and/or control system comprises a receiver component that receives a request for a web page associated with a network adaptor. An execution component executes instantiated objects within the web page to effectuate at least one of monitoring and control of an input/output module that is communicatively coupled to the network adaptor.

Abstract: A system serializes control signals within a safety control architecture wherein a safety serial interface at least one of receives and transmits signals from one or more processing components. A serialization component receives and serializes at least one data packet from the safety serial interface to control at least one of an input and an output associated with the safety control architecture. A safety related test circuit verifies input signals associated with the serialization component are not internally falsifying the state of the input signals. A heartbeat watchdog component verifies a true heartbeat bit in the at least one data packet is opposite a complement heartbeat bit in the at least one data packet within a predetermined time interval and shuts off power to at least one of an output and an input if such a condition is not met.

Abstract: A current loop drive module includes a drive circuit and a compliance voltage controller. The drive circuit is configured to receive a compliance voltage and operable to generate a current loop signal based on the compliance voltage for receipt by an associated load coupled to the drive circuit. The compliance voltage controller is operable to adjust the compliance voltage based on the associated load. A method for generating a current loop signal includes generating a current loop signal based on a compliance voltage for receipt by an associated load and adjusting the compliance voltage based on the associated load.

Abstract: A programmable analog I/O circuit for use in an industrial control system has a first mode of operation as an input circuit and a second mode of operation as an output circuit. In the first mode of operation, a device-side I/O terminal is adapted for receiving an analog input status signal from an analog input device. In the second mode of operation, the device-side I/O terminal is adapted for transmitting an analog output control signal to an analog output device. According to another aspect, a programmable I/O circuit that drives an output device in an industrial control system comprises a plurality of configurable gain stages and a plurality of programmable isolating links. The plurality of programmable isolating links are coupled to the plurality of configurable gain stages and are programmable to determine a series or parallel arrangement of the plurality of configurable gain stages.

Abstract: A programmable analog I/O circuit for use in an industrial control system has a first mode of operation as an input circuit and a second mode of operation as an output circuit. In the first mode of operation, a device-side I/O terminal is adapted for receiving an analog input status signal from an analog input device. In the second mode of operation, the device-side I/O terminal is adapted for transmitting an analog output control signal to an analog output device. According to another aspect, a programmable I/O circuit that drives an output device in an industrial control system comprises a plurality of configurable gain stages and a plurality of programmable isolating links. The plurality of programmable isolating links are coupled to the plurality of configurable gain stages and are programmable to determine a series or parallel arrangement of the plurality of configurable gain stages.

Abstract: A programmable analog I/O circuit for use in an industrial control system has a first mode of operation as an input circuit and a second mode of operation as an output circuit. In the first mode of operation, a device-side I/O terminal is adapted for receiving an analog input status signal from an analog input device. In the second mode of operation, the device-side I/O terminal is adapted for transmitting an analog output control signal to an analog output device. According to another aspect, a programmable I/O circuit that drives an output device in an industrial control system comprises a plurality of configurable gain stages and a plurality of programmable isolating links. The plurality of programmable isolating links are coupled to the plurality of configurable gain stages and are programmable to determine a series or parallel arrangement of the plurality of configurable gain stages.