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    Apter Power helps source HE800JCM100 and verify serial pinout and register mapping.

HE800JCM100

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Horner HE800JCM100 is a SmartStack engine interface module that exchanges controller data with an engine control module through serial communications.
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Technical specifications for HE800JCM100

  • Manufacturer:
    HORNER
  • Part Number:
    HE800JCM100
  • Product Family:
    HORNER
  • Product Type:
    Engine Interface Module
  • Stock:
    1
  • Primary Interface:
    9-pin D-sub RS-232
  • PLC Data Capacity:
    64 input words and 64 output words
  • Serial Channels:
    Two RS-232; one reserved RS-485/422
  • Status Indicators:
    Green TX and red RX LEDs
  • Operating Temperature:
    0 to 60 C
  • Weight:
    0.595 lbs (0.27 kg)
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Serial I/O Data Map Port LEDs Use Cases

Features:

  • Connects a SmartStack controller to an engine control module.
  • Provides separate transmit and receive activity indicators.
  • Exchanges up to 128 sixteen-bit controller words.
The Horner HE800JCM100 dedicates its primary serial connector to engine communications, separating this task from ordinary controller programming ports.

Its paired RS-232 paths and directional LEDs help isolate whether a communication loss originates in transmitted requests, received responses or cable assignment.

Register capacity is split evenly between input and output data, so the controller project should preserve the manual's 64-word boundaries when rebuilding an application.

The Horner HE800JCM100 Engine Interface Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
HE800JCM100 Engine Interface Module Manuals, Datasheets, Links Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Engine Link: The primary 9-pin RS-232 port is intended for the engine control module, so replacement wiring should follow the application pinout rather than a generic PC cable.
  • Second RS-232 Path: A separate serial channel supports the module's documented data flow and gives troubleshooting a distinct connection to test.
  • Reserved Interface: The RS-485/422 connection is present but unused by this application, preventing an unsupported port from being mistaken for an active network.
  • Input Area: Up to 64 sixteen-bit %AI words carry information toward the controller, allowing multi-value engine records to remain grouped.
  • Output Area: A matching block of 64 sixteen-bit %AQ words carries controller data in the opposite direction, so both mappings must be kept in step.
  • Project Alignment: Register addresses should be checked against the engine application before download because a shifted block can produce valid-looking but incorrect values.
  • Transmit View: The green TX indicator shows that the module is placing data on a serial path, helping distinguish software silence from a missing reply.
  • Receive View: The red RX indicator confirms returning serial activity and can expose one-way cabling or protocol problems.
  • Directional Diagnosis: Comparing both indicators during a command cycle narrows troubleshooting before controller registers or engine settings are changed.
  • Engine Monitoring: The module suits controller projects that must bring structured engine information into an OCS or RCS data area.
  • Command Exchange: Separate input and output word blocks support applications that both read operating data and send permitted control values.
  • Legacy Replacement: Matching the D-sub wiring and register map lets an existing machine retain its established engine interface behavior.
Description
The Horner HE800JCM100 provides a serial bridge between a compatible metal SmartStack controller and an engine control module. Its primary 9-pin D-sub connection is assigned to the engine interface, giving the controller a defined path for engine data without occupying a general-purpose I/O slot.

Two RS-232 channels support the documented communications arrangement, while a separate RS-485/422 connection is reserved and is not used by the module application. Green transmit and red receive indicators let maintenance teams distinguish outgoing activity from returning traffic at the front of the stack.

Controller exchange is organized as up to 64 sixteen-bit input words and 64 sixteen-bit output words. Before replacing the Horner HE800JCM100, confirm the serial pinout, engine protocol expectations and PLC register allocation so that the physical link and mapped data remain aligned.
Alternative Names
HE800-JCM100 HE 800 JCM 100 HE800 JCM100 HE-JCM100 Horner HE800JCM100 SmartStack JCM100 JCM100 Engine Interface HE800JCM100 Serial Module
Technical notes
Horner HE800JCM100 maps as many as 64 sixteen-bit input words and 64 sixteen-bit output words. The documented application uses the RS-232 engine interface rather than the reserved RS-485/422 connection.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why does Horner HE800JCM100 transmit but receive no engine data?
Horner HE800JCM100 can show green TX activity even when the return path is absent; check the engine-side pinout, baud and protocol settings, then confirm that the red RX indicator responds.
How should a controller project map Horner HE800JCM100 data?
Horner HE800JCM100 provides as many as 64 sixteen-bit %AI words and 64 sixteen-bit %AQ words, so both block starting addresses and lengths must match the engine application.
Can the RS-485/422 connector on Horner HE800JCM100 replace its RS-232 engine link?
Horner HE800JCM100 documents the RS-485/422 connection as reserved and unused; the engine link should remain on the specified RS-232 interface.
What should be checked before swapping Horner HE800JCM100 in an existing stack?
Before fitting Horner HE800JCM100, compare the 9-pin cable assignment, SmartStack position and controller register map with the saved project and the engine interface manual.
Why do Horner HE800JCM100 values appear in the wrong controller registers?
Misaligned start addresses can shift the Horner HE800JCM100 word blocks; verify the configured %AI and %AQ ranges rather than changing engine parameters first.
How can Horner HE800JCM100 LEDs shorten serial troubleshooting?
On Horner HE800JCM100, green identifies transmitted activity and red identifies received activity, allowing one-way communication faults to be separated from a completely inactive port.

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