JANCD-G5CO1B
May 25, 2026

JANCD-G5CO1B

JANCD-G5C01B (Yasu NAC G5 Series Main Communication / Network Interface Board) Product Overview JANCD-G5C01B (often mistakenly written as G5CO1B) is the core communication motherboard of the YASNAC G5 numerical control system from ABB. It is responsible for the system's external networking, connection with the upper computer, and management of the I/O bus. It is a mandatory board card for the G5 system and is used in conjunction with G1002 (graphics board) and G1R04 (remote I/O board).

Description

Technical Specifications

Model: JANCD-G5C01B (G5C01B)

Applicable system: YASNAC G5 series (2000G/3000G upgrade platform)

Power supply: Backplane DC24V, power consumption approximately 25W

Interface configuration:

Ethernet: 100Base-TX (1 port, upper computer / DNC)

Serial: 1 path each for RS-232/422/485

Bus: G5 dedicated I/O Link (connects G1R series remote I/O)

Expansion: Reserved 1 communication sub-board slot

Protocol support: TCP/IP, Modbus RTU, Yaskawa I/O Link

Environment: 0–55℃, humidity 10%–90% (no condensation)

Structure: 3U standard board card, metal shielding enclosure Core function

System communication hub: Manages data interaction between CNC and external devices (PLC, HMI, upper computer, remote I/O).

DNC networking: Ethernet enables program upload/download, remote monitoring, and data collection.

I/O master station: Connects G1R01/G1R02/G1R04 remote I/O modules through dedicated bus, expanding I/O points.

Protocol conversion: Serial ports support communication with external devices such as third-party instruments, printers, barcode scanners, etc.

Installation and maintenance

Installation: Vertically install in 3U slot, leaving 50mm space for heat dissipation, and ensure reliable grounding of the enclosure.

Maintenance: Regularly blow away dust, check the tightness of interfaces; observe the status of communication indicators; troubleshoot wiring and protocol parameters when abnormalities occur.

Common faults

Ethernet not working: Damaged network cable / interface, IP conflict, incorrect network parameters.

Remote I/O disconnection: Loose bus connector, missing terminal resistor, power-off of slave station module.

Serial port garbled characters: Mismatched baud rate / parity bit, poor grounding, excessive interference.


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