Configured for multi-channel sensor signal processing and discrete control execution in CENTUM VP distributed control architectures, the Yokogawa S2MMM843-SS1030 (S2MMM843 Mixed Analog and Digital I/O Module) provides direct physical/electrical execution.
Hardware Specifications
Parameter
Specification
Model
S2MMM843-SS1030
Brand
Yokogawa
Origin
Japan
Weight
0.35 kg
Dimensions
130 mm x 100 mm x 42 mm
Operating Temp
0 to 60 deg C
Power Consumption
24 VDC system backplane draw, 700 mA max
Signal Resolution
16-bit analog conversion
Channel Config Factor
Universal channels (Analog Input, Digital Input, Digital Output)
4-20 mA HART Loop Protocol & Channel Isolation
The module incorporates channel isolation architecture to shield high-density field wiring from electrical noise and mitigate cross-talk between mixed signal paths. Dedicated input conditioning circuits filter potential high-frequency EMI, preserving measurement precision across 4-20 mA HART loop protocol links connected to field transmitters. Integrated cold junction compensation (CJC) processing algorithms operate deterministically on peripheral analog channels served across the system backplane link.
Frequently Asked Questions
Q: Can individual channels on the S2MMM843-SS1030 be software-configured without physically altering external terminal block wiring?
A: Channel modes (analog input, digital input, or digital output) are universally software-selectable, though external signal wiring must match the intended electrical standard (e.g., powered loop vs. dry contact).
Q: What grounding procedure must be enforced to maintain the module's 16-bit analog measurement accuracy?
A: Shield cables from field devices must terminate directly at a dedicated system protective earth (PE) bus bar to maintain galvanic isolation and prevent ground potential differences from introducing noise into the 16-bit converter stage.
Field Installation Guidelines
Mount the module into the designated slot of the control chassis, verifying full engagement of the high-density backplane connector before securing the locking mechanism. All field signal wiring must be routed via twisted-pair shielded cables, maintaining a minimum physical separation of 150 mm from high-voltage AC conductors. Shield wires must be grounded to the protective earth (PE) bar using short conductors with a minimum cross-sectional area of 2.5 mm sq. Ensure cabinet ambient temperature remains strictly within 0 to 60 deg C to preserve component longevity and conversion accuracy.
