Peter's electronic projectsPayments are typically handled via secure methods like PayPal (no account required).
While the demo version is excellent for basic tasks, unlocking the full potential of this utility requires the exclusive . This article provides a deep dive into what this software offers and why a legitimate license key is the most valuable asset in a control engineer’s toolkit. What is Simply Modbus Master?
Simply Modbus Master is not just another Modbus tool; it boasts a suite of features that cater to both simple and complex testing needs:
Piracy harms the developers who maintain this vital tool. How to Obtain a Legitimate License Key
Displays data in decimal, hex, or binary formats.
Do you need to log data to a automatically?
Simply Modbus Master is a widely used diagnostic tool for testing and debugging Modbus RTU, ASCII, and Enron Modbus systems
The demo version of Simply Modbus Master is intentionally limited, often restricting the number of messages or preventing saving crucial communication logs. An exclusive, legitimate license key removes these restrictions. 1. Uninterrupted Workflow (No Demo Limits)
Download the latest version from the official Simply Modbus website.
To ensure you have a functional and safe version of the software, follow these steps:
Seamlessly switch between Modbus RTU and ASCII protocols.
To obtain a Simply Modbus Master license key, users can follow these steps:
Serial communication using binary encoding over RS-232, RS-422, or RS-485.
Try it now, before building! Click on the transmitter buttons with the
green
labels
on the left and see how the receiver outputs (K1-K8) change. Change
the number of transmitter or receiver channels. Switch the receiver
output type between latched and momentary.
| part | description |
| C1 |
100nF ceramic capacitor |
| R1 |
10k resistor (1/8W) |
| D1-D4 | 1N4148 diode (optional) |
| S1-S8 |
tact switch, DTSM 61N or similar |
| IC1 | PIC16F630 or PIC16F676 microcontroller, pre-programmed |
| TXMOD |
radio
transmitter module, see text (hardware) |
| B1 |
battery between 2-5.5VDC (check TXMOD specs for valid voltage range) |

| part | description |
| C1 |
100nF ceramic capacitor |
| C2 |
470 uF 6.3V, electrolytic
capacitor |
| R1 |
10k resistor (1/8W) |
| R2 |
10 ohm resistor (1/4W) |
| D1-D4 | 1N4148 diode (optional) |
| D5 |
IR transmitter LED |
| Q1 |
BSS138 or similar N-MOSFET |
| S1-S8 |
tact switch, DTSM 61N or similar |
| IC1 | PIC16F684 microcontroller, pre-programmed |
| B1 |
battery between 2-5.5VDC (CR2032, 3.6V LiIon battery or 3xAA
batteries) |
| please
observe the corresponding address configuration! |
|
transmitter: no diodes connected |
receiver: switches all ON |
transmitter: all diodes connected |
![]() receiver: switches all OFF |
parts list
| part | description |
| C1, C2 | 22pF ceramic capacitor |
| C3, C5 | 100nF ceramic capacitor |
| C6 | 10uF 6.3V electrolytic capacitor |
| CN1-CN8 | PCB terminal block, 3-way (DG301) |
| D1-D8 | 1N4004 diode |
| IC1 | PIC16F627 or PIC16F628 or PIC16F627A or PIC16F628A microcontroller, pre-programmed |
| IC2 | LP2950CZ5.0 voltage regulator |
| LED | 3mm LED (green) |
| LED1-LED8 | 3mm LED (red) |
| Q1-Q8 | BS170 N-channel mosfet transistor |
| R1-R9 | 220R resistor (1/8W) |
| RL1-RL8 | G5LE relay, see text for coil voltage selection |
| S1 | piano DIP switch, 4-way |
| X1 | 4MHz HC49 crystal |
| RXMOD | 3-pin radio receiver module, see text (hardware) |
| please
observe the corresponding address configuration! |
|
transmitter: no diodes connected |
receiver: switches all ON |
transmitter: all diodes connected |
![]() receiver: switches all OFF |
Payments are typically handled via secure methods like PayPal (no account required).
While the demo version is excellent for basic tasks, unlocking the full potential of this utility requires the exclusive . This article provides a deep dive into what this software offers and why a legitimate license key is the most valuable asset in a control engineer’s toolkit. What is Simply Modbus Master?
Simply Modbus Master is not just another Modbus tool; it boasts a suite of features that cater to both simple and complex testing needs:
Piracy harms the developers who maintain this vital tool. How to Obtain a Legitimate License Key
Displays data in decimal, hex, or binary formats.
Do you need to log data to a automatically?
Simply Modbus Master is a widely used diagnostic tool for testing and debugging Modbus RTU, ASCII, and Enron Modbus systems
The demo version of Simply Modbus Master is intentionally limited, often restricting the number of messages or preventing saving crucial communication logs. An exclusive, legitimate license key removes these restrictions. 1. Uninterrupted Workflow (No Demo Limits)
Download the latest version from the official Simply Modbus website.
To ensure you have a functional and safe version of the software, follow these steps:
Seamlessly switch between Modbus RTU and ASCII protocols.
To obtain a Simply Modbus Master license key, users can follow these steps:
Serial communication using binary encoding over RS-232, RS-422, or RS-485.
LATCH_MASK EQU B'00001111' sets channels 8-5 to momentary
and
channels 4-1 to latched (toggle) mode. Then use the compiler (MPLAB or
gputils) to
assemble the code.clrf
0x91 ;
ANSEL