Description
Basic Hardware Information
‑ Processor: Intel 80188 Turbo, 10 MHz ‑ Logic scan speed: 0.6 ms / 1K Boolean contacts ‑ User program memory: 12 KB ‑ Register memory (%R): 1024 words ‑ Max discrete I/O: 160 total (%I+%Q combined) ‑ Analog capacity: 64 AI words, 32 AQ words ‑ Internal memory resources: %G 1280 bits, %M 1024 bits, %T 256 bits, %S 128 system status bits ‑ Slots: 5‑slot baseplate; slot‑0 = dedicated power‑supply slot; slots 1‑5 for I/O / communication modules ‑ Expansion capability: No expansion bus interface, multi‑rack expansion not supported ‑ On‑board communication: RS‑485 SNP/SNP‑X slave port (via power‑supply connector) ‑ Real‑time clock: None ‑ Back‑plane consumption: 430 mA @5 VDC ‑ Mechanical: DIN‑rail mount integrated base‑plate assembly; weight approx 1.8‑2.0 kg ‑ Protection rating: IP20 (cabinet‑only installation) ‑ Operating ambient temperature: 0 ℃ ~ +60 ℃; storage temperature‑40 ℃ ~ +85 ℃; relative humidity 5‑95 % non‑condensing ‑ Handling note: ESD‑sensitive integrated PCB; anti‑static wrist‑strap required during module replacement; program loss risk when power‑supply battery is exhausted ‑ Compatibility: Series 90‑30 I/O and communication modules; cannot work with expansion baseplates IC693CHS392 / IC693CHS398; incompatible with Series 90‑70 / RX3i hardware.
Core Functions & Features
- Integrated PLC controller executing user ladder logic, handles discrete/analog I/O processing, timer‑counter arithmetic and user logic operations for small‑scale standalone equipment.
- RS‑485 SNP‑X slave interface supports programming software download/upload, connects to third‑party HMI/SCADA via SNP protocol.
- Supports standard Series 90‑30 I/O and intelligent communication modules (CMM, BEM series) within local 5‑slot chassis; total back‑plane current budget must be observed.
- Memory backup: power‑supply battery maintains register data; super‑capacitor preserves data for limited hours after power‑supply removal; long‑term power‑off results in register data loss, program stored in non‑volatile EPROM remains intact。
- No expansion‑bus hardware; system I/O capacity strictly limited to local 5‑slot rack resources.
- Different hardware‑firmware revisions are mechanical‑electrical drop‑in replacements; after replacement, re‑download PLC project and hardware configuration.
On‑site Installation & Commissioning Notes
- Power‑off the system before inserting or removing modules. Secure base‑plate firmly on cabinet DIN‑rail.
- Install matching Series 90‑30 power‑supply into far‑left slot, populate I/O / communication modules into slots 1‑5, press modules fully until locking tab clicks. Check total 5 VDC current consumption does not exceed power‑supply rating.
- RS‑485 SNP communication wiring: connect programming cable to power‑supply serial port; use shielded twisted‑pair, terminate bus ends.
- Download ladder program and hardware configuration via programming software; verify CPU RUN status, monitor system status bits (%S).
- Periodically inspect power‑supply backup‑battery aging; battery failure will lose register data on power‑loss, user program is preserved.
- Replacement note: Cannot substitute with discrete CPU‑module plus separate CHS main‑baseplate. After replacement, re‑download project, verify I/O channels and serial SNP communication.






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