The Mitsubishi QJ71C24N-R4 is a serial communication link module for the Q-series PLC rack. It handles asynchronous serial frames with data bit set to 7 or 8, stop bit 1 or 2, start bit 1, and parity selectable as 1 (vertical) or none — covering common formats like 8N1, 7E1, or 7O1. Its nonprocedural protocol and bidirectional protocol support both polled and unsolicited sends, making it suitable for connecting to barcode scanners, printers, or drives that send data without a request.
QJ71C24N-R4 Serial Link Module, RS-232
MPNQJ71C24N-R4
Mitsubishi QJ71C24N-R4, Q-series Serial Communication Link Module, RS-232, configurable data bit 7/8, stop bit 1/2, bidirectional protocol.
$298.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Data bit | 7/8 |
| Stop bit | 1/2 |
| Start bit | 1 |
| Parity bit | 1(vertical parity) or none |
| External dimension | 98(3.86in.)(H) x 27.4(1.08in.)(W) x 90(3.54in.)(D)[mm] |
| Nonprocedural protocol communication bidirectional protocol communication | Sends each time a send request is issued. Can receive at any time. |
Product details
Frequently asked questions
What are the configurable data and stop bits?
Data bit can be set to 7 or 8; stop bit to 1 or 2. Start bit is fixed at 1. Parity is selectable as 1 (vertical parity) or none.
How fast can I get this module?
Estimated lead time is 1–10 working days. Submit an RFQ for current stock and lead time on your specific quantity.
MPN
QJ71C24N-R4