Counting performance
Maximum counting frequency:
A/B/C/D mode: 200 kHz
E-type A-Quad-B orthogonal fourth harmonic mode: 800 kHz
Counter bits: 32-bit accumulator
5 working modes: Type A/B/C/D/E
Type-D: 4-channel independent counter (most commonly used, 4-channel encoder)
Type-B: 2-channel independent counter
Type-C: Differential Counting (Difference between Two Encoders)
Type-A/E: Single channel high-speed orthogonal counting, E-mode output response is the fastest (10 μ s)
Counting function: up/down counting, orthogonal fourth harmonic, latch, preset loading, hardware gating, trigger of marker signal (Z-phase); Module local hardware triggers output, independent of PLC scanning cycle.
Input specifications (12 channels, can be single ended/differential)
Input type: TTL   5VDC; Non‑TTL 10‑30VDC； I1-I4 supports magnetic electric sensor MPU (400mV threshold)
Threshold:
TTL：VON=1.4V，VOFF=0.8V
10‑30V：VON=8.0V，VOFF=5.0V
MPU(I1‑I4)：VON=400mV，VOFF=200mV
Input impedance: 6k Ω; typical hysteresis 250mV
Input filtering: I1-I8 can choose 2 μ s/10ms; I9-I12 fixed for 2 μ s
Encoder power supply: onboard+5VDC output; 500mA maximum at 40 ℃; 300mA maximum at 60 ℃
Cable: Recommended shielded cable, maximum 30 meters
Output specifications (4-channel, optocoupler isolation, positive logic source output)
External power supply: 5VDC or 10-30VDC (output power supply needs to be provided externally)
10-30VDC: maximum 1A per channel at 60 ℃
5VDC power supply: typical 20mA/channel
Off state leakage current: ≤ 10 μ A; Inductive load clamp -8V
Function: Count preset points trigger output, compare output, hardware real-time output, no CPU intervention required
LED: Module OK light+O1-O4 output status indicator light
Electrical, Backboard, and Mechanical
Backboard power supply: only taken from the 90-70 backboard 5V; backboard current is about 1A+output load
Slot position: occupied by a single slot; Can accommodate CPU racks, expansion racks, and remote Genius racks
Isolation level: I/O to backplane 1500VAC (1s)
Wiring: Removable terminal block
Weight: Approximately 0.4kg
environmental conditions
Working temperature: 0~+60 ℃
Storage temperature: -40~+70 ℃
Humidity: 5-95% RH, no condensation
Certification: UL, CSA, CE
PLC memory mapping
Occupation: 32 point discrete input% I, 16 word analog input% AI; 32 point discrete output% Q, 6 word analog output% AQ, refreshed per CPU scan cycle; Support DOIO to achieve high-speed access to module data.
software configuration
Configuration software: Logicmaster 90-70, software configuration, no hardware dip switch; The module has built-in self diagnosis.

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