GE IC693MDL646C High-Speed Digital Input Module

Plate-forme: Série 90-30 API | Taper: 16-point 24VDC Fast Digital Module d'entrée

Suffix C = Hardware Revision C; downward compatible within the same series. It is a revised version of IC693MDL646 with identical functionality, only PCB and component redesign.

✅ Spécifications clés

Points: 16 DEPUIS, 1 common group (single common terminal)

Tension nominale: DC24V, operating range 0～30VDC

ON State: 11.5～30VDC; OFF State: 0～5VDC

Channel Input Current: Typical 7mA @24VDC; minimum ON current 3.2mA, maximum leakage current 1.1mA

Temps de réponse: Typique 1 ms (Fast Input); suitable for high-speed proximity switches, encoders and pulse signal acquisition

Logic Compatibility: PNP positive logic / NPN negative logic universal, selected by wiring, no DIP switches

Isolement: 1500Vrms opto-isolation between field side and PLC backplane; pas d'isolation entre les canaux individuels

Backplane Power Consumption: 80mA on 5V bus; 125mA on 24V side (power can be sourced from backplane 24V or external power supply)

Indicateurs: 16 independent green LED status lights for each channel

Terminaux: 20-position removable screw terminal block; matching terminal base model IC693ACC302

Température de fonctionnement: 0～60°C, monté sur armoire (IP20)

Reference Manual: GFK-0898 (Series90-30 I/O Specification Manual)

✅ Applications typiques

Fins de course, boutons-poussoirs, NPN/PNP proximity sensors, photoelectric switches, high-speed pulse signals, contactor auxiliary contacts. Can be installed in any I/O slot on the 90-30 étagère.

✅ Cros-model Selection & Remplacement

IC693MDL645: 16-point 24VDC standard DI (non-high-speed, réponse lente)

IC693MDL646 / 646C / 646E: 16-point 24VDC FAST high-speed DI, different hardware revisions, entièrement interchangeable

IC693MDL644: High-speed DI only for NPN negative logic; cannot connect PNP sensors

✅ Guide de dépannage

1. Single channel LED off: Check external 24V power, sensor supply, COM terminal wiring and open circuit
2. No signal on all channels: Check module 24V power supply, reversed common terminal connection and backplane 5V power
3. Signal chattering: This module has 1ms fast response without built-in software filter; implement time-delay filtering in PLC program for anti-chatter
4. Module OK light abnormal: Mauvais contact du fond de panier, module failure or rack hardware fault

✅ Remarks

This model is fully discontinued (GE Fanuc 90-30 platform); seulement d'occasion, refurbished and surplus spare parts available on market. Two replacement options:

In-platform replacement: Prefer IC693MDL646E (latest hardware revision)

Whole PLC migration: Upgrade to RX3i (IC695 series) or other brand PLC, requiring re-planning I/O layout and program migration

GE Fanuc Series 90-30 (IC693) Liste complète des modèles

Platform Note: Entire series discontinued. Suffix A/B/C/D/E/F indicates hardware revision; most models with different suffixes are plug-and-play interchangeable. Models are categorized below; your selected IC693MDL646C is listed under Digital Input section.

1. Modules CPU (IC693CPUxxx)

1. Modules d'alimentation (IC693PWRxxx)

III. Baseplates / Racks (IC693CHSxxx)

1. Entrée numérique DI (IC693MDL6xx / MDL2xx)

1. Sortie numérique DO (IC693MDL3xx / MDL7xx)

1. Entrée analogique AI / Sortie analogique AO (IC693ALGxxx)

VII. Modules de fonctions spéciales: Compteur à grande vitesse & Contrôle de mouvement

VIII. Modules de communication (IC693CMMxxx / Bus Master Modules)

1. Accessoires, Terminaux, Câbles & Redundancy Parts (IC693ACCxxx / CBLxxx)

Notes complémentaires

1. Suffix C/D/E/F only represent PCB hardware revision; brochage, function and software configuration remain identical, direct replacement is allowed.
2. Platform migration path: PACSystems RX3i (IC695 series). I/O addressing and program structure require conversion.
3. This list covers mainstream engineering models; early obsolete niche versions are excluded.

Série 90-30 (IC693) → PACSystems RX3i (IC695 / IC694) Migration Comparison Table

Critical Precondition Notes:

1. IC693 modules cannot be plugged directly into IC695 backplane. Two RX3i upgrade options:

Option A: IC694 backplane (90-30 compatible rack). Reuse existing IC693 I/O modules; only replace CPU and power supply, no field wiring change (preferred for retrofit without shutdown).

Option B: Native IC695 RX3i backplane. Replace all I/O with IC695 series modules and rewire (for new projects and long-term spare parts strategy).

2. Logiciel: Convert VersaPro (90-30) project to Machine Edition (MOI); import LPU files. Memory address mapping, partial COMMREQ blocks and SNP protocol have differences.
3. Three columns below: Legacy IC693 model, IC694 compatible backplane equivalent, IC695 native RX3i replacement + remarks.

1. Modules CPU

1. Modules d'alimentation

III. Baseplates / Racks

1. Entrée numérique DI (including IC693MDL646 you selected)

1. Sortie numérique DO

1. Entrée analogique AI / Sortie analogique AO

VII. Modules de fonctions spéciales

VIII. Modules de communication

1. Accessoires

⚠️ Critical Migration Risk Checklist (Mandatory for Projects)

1. SNP Protocol: RX3i no longer supports SNP (legacy HMI common protocol). Either upgrade HMI driver or switch to Modbus TCP/RTU.
2. COMMREQ communication function blocks: Same function code, but parameter block length and port selection word are extended; direct project import will trigger errors, program revision is required.
3. I/O Addressing: Logical point numbers can remain unchanged (via ME import mapping), but hardware slot recognition logic on backplane is modified.
4. IC694 solution is ideal for no-shutdown retrofit and unchanged field wiring; IC695 is for new builds and long-term spare part security.
5. Migration workload is highest for high-speed counter and motion modules; register and command word definitions are different, existing program cannot be reused directly.