Connection Parameters Needed for HMI/cMT Products to Communicate with XModem 1K using EBPro (EasyBuilder Pro)

Introduction

All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with XModem 1K. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.

Supported Series: 1K XModem Protocol

HMI Setting

Parameters	Recommended	Options
PLC type	XModem -1K (download-only mode)
PLC I/F	RS485 2W
Baud rate	9600
Data bits	8
Parity	None
Stop bits	1
File position	USB	USB / SD

Device Address

Bit/Word	Tag Name	Data Type	Memo
B	Start	BOOL
W	TransmissionFileName	String[50]	*Note 1
W	TransmissionProgress	WORD	0 ~ 100 (%)
W	TransmissionStatus	WORD	*Note 2

Note 1: [TransmssionFileName] can be used with the File Browser object. Set the device to XModem -1K (download-only mode) and the tag to TransmissionFileName[0], as shown below.

File Browser Object properties showing Device set to XModem -1K (download-only mode) and Tag set to TransmissionFileName[0] with 20 word(s).

NOTE: The [File Position] setting must be consistent with the driver COM port settings.

File Browser Object's Properties dialog, Outline tab, showing File position set to USB disk with SD card as an alternative option.

COM Port Settings dialog showing Baud rate 9600, Data bits 8 Bits, Parity None, Stop bits 1 Bit, and File position set to USB.

Note 2: TransmissionStatus values:

Value	Status
0	Ready
1	Transfer in progress
2	Transfer completed
3	Transfer canceled
4	Transfer failed

Wiring Diagram

NOTE: The serial port pin assignments may vary between HMI models.

RS-485 2W

HMI	Direction	PLC
Pin assignments		RS485 2W terminal
Data-	↔ (bidirectional)	Data-
Data+	↔ (bidirectional)	Data+
GND	↔ (bidirectional)	GND