The DS3820DMVB1A1A is an 8-channel digital input module with diagnostic monitoring, time-stamping, and contact de-bounce/change-of-state (COS) latching capability, specifically configured for 24 V DC inputs with vibration-tolerant spring-clamp terminals and a fixed terminal configuration (1A1A suffix). It accepts 24 V DC signals from field devices such as limit switches, pushbuttons, proximity sensors, and relay contacts. The DS3820DMVB1A1A features per-channel time-stamping (1 ms resolution), COS detection, open-wire/short-circuit diagnostics, software-configurable input filtering, per-channel latching outputs, and spring-clamp termination for tool-free, vibration-resistant wiring. The fixed configuration makes it a plug-and-play SOE/latching solution for high-vibration environments requiring event logging and persistent fault indication.
The DS3820DMVB is an 8-channel digital input module with diagnostic monitoring, time-stamping, and contact de-bounce/change-of-state (COS) latching capability, specifically configured for 24 V DC inputs with vibration-tolerant spring-clamp terminals (suffix “B”). It accepts 24 V DC signals from field devices such as limit switches, pushbuttons, proximity sensors, and relay contacts. The DS3820DMVB features per-channel time-stamping (1 ms resolution), COS detection, open-wire/short-circuit diagnostics, software-configurable input filtering, per-channel latching outputs, and spring-clamp termination for tool-free, vibration-resistant wiring. It is the enhanced SOE/latching solution for applications in high-vibration environments requiring event logging and persistent fault indication.
The DS3820DMCC1A1A is an 8-channel digital input module with diagnostic monitoring, time-stamping, and contact de-bounce/change-of-state (COS) latching capability, specifically configured for 120 V AC/DC inputs (wide-range) with a fixed screw-type terminal block (1A1A suffix). It accepts 80–150 V AC/DC signals from field devices such as limit switches, pushbuttons, proximity sensors, and relay contacts. The DS3820DMCC1A1A features per-channel time-stamping (1 ms resolution), COS detection, open-wire/short-circuit diagnostics, software-configurable input filtering, and per-channel latching outputs for persistent alarm indication. The fixed terminal configuration makes it a plug-and-play high-voltage SOE/latching solution for critical alarm monitoring and first-fault detection.
The DS3820DMCC is an 8-channel digital input module with diagnostic monitoring, time-stamping, and contact de-bounce/change-of-state (COS) latching capability, specifically configured for 120 V AC/DC inputs (wide-range). It accepts 80–150 V AC/DC signals from field devices such as limit switches, pushbuttons, proximity sensors, and relay contacts. The DS3820DMCC features per-channel time-stamping (1 ms resolution), COS detection, open-wire/short-circuit diagnostics, software-configurable input filtering, and per-channel latching outputs for persistent alarm indication. It is the high-voltage SOE/latching solution for critical alarm monitoring, first-fault detection, and sequence-of-events recording in power and heavy industrial applications.
The DS3820DMCB1A1A is an 8-channel digital input module with diagnostic monitoring, time-stamping, and contact de-bounce/change-of-state (COS) latching capability, specifically configured for 24 V DC inputs. It features per-channel time-stamping (1 ms resolution), COS detection, open-wire/short-circuit diagnostics, software-configurable input filtering, per-channel latching outputs, and a specific terminal block type (screw-type, 1A1A suffix configuration). The fixed configuration makes it a plug-and-play SOE/latching solution for critical alarm monitoring and first-fault detection.
The DS3820DMCB is an 8-channel digital input module with diagnostic monitoring, time-stamping, and contact de-bounce/change-of-state (COS) latching capability, specifically configured for 24 V DC inputs. It accepts 24 V DC signals from field devices such as limit switches, pushbuttons, proximity sensors, and relay contacts. The DS3820DMCB features per-channel time-stamping (1 ms resolution), COS detection, open-wire/short-circuit diagnostics, software-configurable input filtering, and an additional latching COS output per channel that holds state changes for alarming. It is the enhanced SOE solution for applications requiring persistent fault indication and event logging.
The DS3820DIMC is an 8-channel digital input module with diagnostic monitoring and time-stamping capability, specifically configured for 120 V AC/DC inputs (wide-range). It accepts 80–150 V AC/DC signals from field devices such as limit switches, pushbuttons, proximity sensors, and relay contacts. The DS3820DIMC features per-channel time-stamping (1 ms resolution), change-of-state (COS) detection, open-wire/short-circuit diagnostics, and software-configurable input filtering. It is the high-voltage SOE solution for critical alarm monitoring in power, substation, and heavy industrial applications.
The DS3820DIMA is an 8-channel digital input module with diagnostic monitoring and time-stamping capability, designed for high-reliability discrete signal monitoring in PLC/DCS systems. It accepts 24 V DC inputs (sourcing/sinking configurable) from field devices such as limit switches, pushbuttons, proximity sensors, and relay contacts. The DS3820DIMA features per-channel time-stamping (events logged with millisecond precision), change-of-state (COS) detection, open-wire/short-circuit diagnostics, and input filtering (software-configurable). It is the solution for sequence-of-events (SOE) recording and critical alarm monitoring.
The DS3820CJ1A is a 1-channel digital counter/totalizer input module designed for high-speed event counting and accumulation in PLC/DCS systems. It accepts 24 V DC pulses from proximity sensors, photoelectric sensors, flowmeters, and relay contacts. The DS3820CJ1A features a single 32-bit counter channel with programmable count modes (up/down, rate measurement, totalization, and batch counting), built-in digital filtering, and a preset/comparison output for triggering actions when a count value is reached. It is the dedicated solution for applications requiring a single high-integrity counter with alarm or control output.
The DS3820CI2BH21B1A is a 2-channel high-speed counter/encoder input module with 5 V differential (RS-422) inputs, featuring isolated auxiliary power output and screw-type terminals (21-pin, per suffix “H21B”). It supports 5 V differential encoder signals (A+, A-, B+, B-, Z+, Z-) with maximum frequency up to 500 kHz – five times faster than standard 24 V versions. The DS3820CI2BH21B1A includes quadrature decoding (x1/x2/x4), frequency, period, and pulse-width measurement, plus an isolated 5 V DC power output (up to 200 mA) for powering encoders directly from the module. It is the high-performance choice for precision motion control and high-speed positioning applications.
The DS3820CI2AG21C1A is a 2-channel digital counter/encoder input module with 24 V DC inputs, featuring differential/single-ended configurability, a spring-clamp terminal block (21-pin, per suffix “G21C”), and additional isolated auxiliary power output (per suffix “1A”). It supports high-speed counting (up to 100 kHz), quadrature decoding (x1/x2/x4), frequency, period, and pulse-width measurement. The DS3820CI2AG21C1A includes differential inputs for long cable runs, spring-clamp terminals for vibration-resistant tool-free wiring, and an integrated isolated 24 V DC power output (up to 100 mA) for powering encoders or sensors directly from the module. This combination makes it the most self-contained and installation-friendly counter module in the family.
The DS3820CI2AD21C is a 2-channel digital counter/encoder input module with 24 V DC inputs, featuring differential/single-ended configurability and a 21-pin screw-type terminal block (per suffix “D21C”). It supports high-speed counting (up to 100 kHz), quadrature decoding (x1/x2/x4), frequency, period, and pulse-width measurement. The DS3820CI2AD21C includes differential inputs for each channel, providing superior noise immunity for long cable runs, plus built-in digital filtering and 32-bit resolution. The differential input capability distinguishes it from single-ended versions, making it ideal for industrial environments with significant electrical noise.
