UPAC-MBUSCRD-AZ01B - Electronic board nJoy - Free user manual and instructions

Product Type	Modbus Communication Card for UPS and PV Inverter
Brand	nJoy
Model	UPAC-MBUSCRD-AZ01B
Dimensions (approx.)	50 x 30 x 10 mm
Weight (approx.)	50 g
Power Consumption	< 1 W
Communication Protocol	Modbus RTU
Interface	RS-485 via RJ45 connector
Surge Protection	Yes
Machine ID Configuration	8-bit DIP switch (SW1) for up to 255 IDs
Communication Format Settings	Baud rate (2400-19200 bps), parity (even, odd, none), stop bits
RS-485 Resistance Configuration	3 DIP switches for pull-up, pull-down, and termination resistors
Package Contents	Modbus card, spare jumper, user manual
Compatibility	Compatible with UPS and PV inverter systems with intelligent slot
Multiple Monitoring	Up to 31 UPS units monitored from one computer
Storage Temperature	-10°C to +70°C
Installation	Plug into intelligent slot, no need to power off UPS/inverter
Media Converters	RS-485 to RS-232, RS-485 to Modbus/TCP, or PMU/PLC converter
Disposal	Do not dispose as household waste; recycle via WEEE collection point

Frequently Asked Questions - UPAC-MBUSCRD-AZ01B nJoy

What is the purpose of the nJoy UPAC-MBUSCRD-AZ01B Modbus card?

The Modbus card enables remote monitoring and control of a UPS or PV inverter by providing a Modbus RTU communication interface via RS-485.

How do I set the machine ID on the Modbus card?

Use the 8-bit DIP switch SW1 to set the ID. Each bit represents a binary value; push down for '1', up for '0'. Refer to the appendix in the manual for specific ID-SW1 mappings (IDs 1-255).

What communication formats are supported?

Baud rates: 2400, 4800, 9600, 19200 bps (default 19200). Parity: even, odd, or none with 1 or 2 stop bits. Configure via SW1 bits 1-4.

How do I configure the RS-485 resistance?

Use DIP switches #6 (pull-up), #7 (pull-down), and #8 (termination). All are enabled by default (ON). Disable if the network already has terminating resistors.

How do I connect the Modbus card to a computer?

Connect via an RS-485 to RS-232 converter or RS-485 to Modbus/TCP converter. Use an RJ45 cable between the card and the converter. Pinout: Pin 4 (RS-485 B), Pin 5 (RS-485 A), Pin 8 (GND).

Can I use multiple Modbus cards in one system?

Yes, each UPS can have one Modbus card. Up to 31 UPS units (each with its own ID) can be monitored from a single computer using a daisy-chain RS-485 network.

What should I do if the card is missing or damaged?

Contact the store where you purchased the product. The package includes a Modbus card, a spare jumper, and a user manual.

How do I install the Modbus card?

First set the ID and communication format via DIP switches. Then insert the card into the intelligent slot of the UPS or PV inverter. No need to turn off the device.

Does the card support surge protection?

Yes, the Modbus card provides surge protection on the RS-485 interface.

What is the storage temperature range for the card?

Store the card in a dry place at temperatures between -10°C and +70°C.

USER MANUAL UPAC-MBUSCRD-AZ01B nJoy

Green printed circuit board with network ports and components, no visible text or symbols on the board itself.

388.44.23.0

Table of contents

EN

1. Package contents....3
2. Product overview 4
3. Product Introduction ...... 4
4. Installation and Operation....5
5. Configuration .... 5

5.1 Machine ID Configuration ....5
5.2 Communication Format Configuration....5
5.3 RS-485 Resistance Configuration....6
5.4 Interface Configuration 6
5.5 Connection 6

1. Multiple Monitoring ....7

RO

1. Continut pachet....15
2. Prezentare produs....16
3. Introducere produs....16
4. Instalarea si operarea....17
5. Configurarea....17

5.1 Configurare ID maşină 17
5.2 Configurare format de comunicare ....17
5.3 Configurare rezistenta RS-485....18
5.4 Configurare interfata ....18
5.5 Conexiunea....18

1. Monitorizare multipla....19

Thank you for purchasing our products!

Please read this manual before using the product.

nJoy is a brand of power and backup protection products that create solutions for multiple levels of environment complexity, residential to industrial.

A Modbus card is a hardware component that allows electronic devices or systems to communicate using the Modbus protocol. Modbus is a widely used communication protocol for remote monitoring and controlling of UPSes.

NOTE!

Please consult both protocol manuals to check compatibility with your UPS.

Package contents1

√ Modbus card
√ Spare jumper

√ User Manual

NOTE!

If any of the above package content is missing or is damaged please contact the shop where you have bought the product from.

• If the card must be stored prior to installation; storage must be in a dry place.
• The admissible storage temperature range is from -10^ to +70^ .

Product overview2

① RS-485 port
② Golden finger
③ Address switch
4 Communication setting
⑤ Resistance switch

Product Introduction 3

The Modbus card provides UPS and PV inverter systems with the functionality of communication with PCs through MODBUS protocol:

• Implements MODBUS RTU protocol
• Provides MODBUS functions including read Holding Registers and write Registers.
• Provides RS485 interface
• Provides surge protection

Installation and Operation4

Follow below steps to install and use this modbus card:

1. Configure Modbus ID (Refer to section 5.1 for the details)
2. Configure communication format (Refer to section 5.2 for the details)
3. Insert this modbus card into intelligent slot
4. Connect modbus card to computer with RJ45 cable, and it is not necessary to turn the UPS or PV inverter off. (Refer to section 5.5 for the details)

Configuration5

5.1 Machine ID Configuration

There are eight bits to present ID of each card.

Use SW1 to set machine ID. From left to right, it's 8 to 1. As shown, when the switch is pushed down, the bit is set to "one". Otherwise, the bit is set as zero. The ID of modbus card is set to 0x01 as chart. Please check appendix for detailed ID no. and SW1 setting.

5.2 Communication Format Configuration

Function Bit Setting Meaning
Baud rate	# 2 #	1
	OFF	OFF 2400bps
	OFF	ON 4800bps
	ON	OFF 9600bps
	ON	ON 19200bps(default)
Parity check	# 4 #	3
	OFF	OFF Even parity
	ON	OFF Odd parity
	OFF	ON No parity check 1 stop bits (Default)
	ON	ON No parity check 2 stop bits

5.3 RS-485 Resistance Configuration

Function Bit Setting		Meaning
Push up resistance	#6	ON Enable (Default)
		OFF Disable
Pushdown resistance	#7	ON Enable (Default)
		OFF Disable
Terminate resistance	#8	ON Enable (Default)
		OFF Disable

5.4 Interface Configuration

RS-485 Pin Configuration

Pin Function
4 RS-485	- B
5 RS-485	- A
8 GND

5.5 Connection

First, please use one RS485 to RS232 converter or RS-485 to Modbus/TCP converter as media converter between Modbus card and computer. You also can use a PMU as media converter between Modbus card and PLC (Power Line Carrier) to transfer data through the grid. Please follow below chart for wiring connection between RJ45 and media converter:

Wiring connection between RJ45 and media converter

Then, follow below diagram to connect personal computer:

Using RS-485 to RS-232 converter

Use RS-485 to Modbus/TCP converter

graph LR
    A["Device"] --> B["PMU"]
    B --> C["Active"]
    B --> D["Reactive"]
    C --> E["Power Line Carrier"]
    D --> E
    F["RS-485"] --> B
    G["RS-63"] --> B
    H["Utility"] --> E

Radio ripple control receiver
Using RS-485 to PLC converter

Multiple Monitoring6

One modbus card only can be used in one UPS at the same time. When each UPS installed with one modbus card, up to 31 UPSs can be monitored from one computer.

graph TD
    A["End-of-line Device"] --> B["RS-485 to RS-232 converter"]
    C["Intermediate Device"] --> B
    D["First Device"] --> E["TCP/IP converter"]
    E --> F["Internet"]
    G["Power Line Carrier"] --> H["Active"]
    H --> I["Radio ripple control receiver"]
    J["End-of-line Device"] --> K["RS-485 to RS-232 converter"]
    L["Intermediate Device"] --> K
    M["First Device"] --> N["RT-485 to RS-232 converter"]
    O["Power Line Carrier"] --> P["Active"]
    Q["SW2 Setting"] --> R["Internet"]
    S["Bit # Setting Meaning"] --> T["#6 ON Enable"]
    U["Bit # Setting Meaning"] --> V["#7 ON Enable"]
    W["Bit # Setting Meaning"] --> X["#8 OFF Disable"]
    Y["Bit # Setting Meaning"] --> Z["#6 ON Enable"]
    AA["Bit # Setting Meaning"] --> AB["#7 ON Enable"]
    AC["Bit # Setting Meaning"] --> AD["#8 OFF Disable"]

APPENDIX: Machine ID Configuration Table (SW1) √=ON ×=OFF

ID\SW1	Bit 1	Bit 2	Bit 3	Bit 4	Bit 5	Bit 6	Bit 7	Bit 8
1	√	×	×	×	×	×	×	×
2	×	√	×	×	×	×	×	×
3	√	√	×	×	×	×	×	×
4	×	×	√	×	×	×	×	×
5	√	×	√	×	×	×	×	×
6	×	√	√	×	×	×	×	×
7	√	√	√	×	×	×	×	×
8	×	×	×	√	×	×	×	×
9	√	×	×	√	×	×	×	×
10	×	√	×	√	×	×	×	×
11	√	√	×	√	×	×	×	×
12	×	×	√	√	×	×	×	×
13	√	×	√	√	×	×	×	×
14	×	√	√	√	×	×	×	×
15	√	√	√	√	×	×	×	×
16	×	×	×	×	√	×	×	×
17	√	×	×	×	√	×	×	×
18	×	√	×	×	√	×	×	×
19	√	√	×	×	√	×	×	×
20	×	×	√	×	√	×	×	×
21	√	×	√	×	√	×	×	×
22	×	√	√	×	√	×	×	×
23	√	√	√	×	√	×	×	×
24	×	×	×	√	√	×	×	×
25	√	×	×	√	√	×	×	×
26	×	√	×	√	√	×	×	×
27	√	√	×	√	√	×	×	×
28	×	×	√	√	√	×	×	×
29	√	×	√	√	√	×	×	×
30	×	√	√	√	√	×	×	×
31	√	√	√	√	√	×	×	×
32	×	×	×	×	×	√	×	×
33	√	×	×	×	×	√	×	×
34	×	√	×	×	×	√	×	×
35	√	√	×	×	×	√	×	×
36	×	×	√	×	×	√	×	×
37	√	×	√	×	×	√	×	×
38	×	√	√	×	×	√	×	×
39	√	√	√	×	×	√	×	×
40	×	×	×	√	×	√	×	×
41	√	×	×	√	×	√	×	×
42	×	√	×	√	×	√	×	×
43	√	√	×	√	×	√	×	×
44	×	×	√	√	×	√	×	×
45	√	×	√	√	×	√	×	×
46	×	√	√	√	×	√	×	×
47	√	√	√	√	×	√	×	×
48	×	×	×	×	√	√	×	×
49	√	×	×	×	√	√	×	×
50	×	√	×	×	√	√	×	×
51	√	√	×	×	√	√	×	×
52	×	×	√	×	√	√	×	×
53	√	×	√	×	√	√	×	×
54	×	√	√	×	√	√	×	×
55	√	√	√	×	√	√	×	×
56	×	×	×	√	√	√	×	×
57	√	×	×	√	√	√	×	×
58	×	√	×	√	√	√	×	×
59	√	√	×	√	√	√	×	×
60	×	×	√	√	√	√	×	×
61	√	×	√	√	√	√	×	×
62 ×		W	√	√	√	√		×
63	×√	√	√	√	√	√		×
64	×	×	×	×	×	×	√	×
65	√	×	×	×	×	×	√	×
66	×	√	×	×	×	×	√	×
67	√	√	×	×	×	×	√	×
68	×	×	√	×	×	×	√	×
69	√	×	√	×	×	×	√	×
70	×	√	√	×	×	×	√	×
71	√	√	√	×	×	×	√	×
72	×	×	×	×	×	×	√	×
73	√	×	×	√	×	×	√	×
74	×	√	×	×	×	×	√	×
75	√	√	×	√	×	×	√	×
76	×	×	√	√	×	×	√	×
77	√	×	√	√	×	×	√	×
78	×	√	√	√	×	×	√	×
79	√	√	√	√	×	×	√	×
80	×	×	×	×	√	×	√	×
81	√	×	×	×	√	×	√	×
82	×	√	×	×	√	×	√	×
83	√	√	×	×	√	×	√	×
84	×	×	√	×	√	×	√	×
85	√	×	√	×	√	×	√	×
86	×	√	√	×	√	×	√	×
87	√	√	√	×	√	×	√	×
88	×	×	×	√	√	×	√	×
89	√	×	×	√	√	×	√	×
90	×	√	×	√	√	×	√	×
91	√	√	×	√	√	×	√	×
92	×	×	√	√	√	×	√	×
93	√	×	√	√	√	×	√	×
94	×	√	√	√	√	×	√	×
95	× √	√	√	√	√		√	×
96	×	×	×	×	×	√	√	×
97	√	×	×	×	×	√	√	×
98	×	√	×	×	×	√	√	×
99	√	√	×	×	×	√	√	×
100	×	×	√	×	×	√	√	×
101	√	×	√	×	×	√	√	×
102	×	√	√	×	×	√	√	×
103	√	√	√	×	×	√	√	×
104	×	×	×	√	×	√	√	×
105	√	×	×	√	×	√	√	×
106	×	√	×	√	×	√	√	×
107	√	√	×	√	×	√	√	×
108	×	×	√	√	×	√	√	×
109	√	×	√	√	×	√	√	×
110	×	√	√	√	×	√	√	×
111	√	√	√	√	×	√	√	×
112	×	×	×	×	√	√	√	×
113	√	×	×	×	√	√	√	×
114	×	√	×	×	√	√	√	×
115	√	√	×	×	√	√	√	×
116	×	×	√	×	√	√	√	×
117	√	×	√	×	√	√	√	×
118	×	√	√	×	√	√	√	×
119	√	√	√	×	√	√	√	×
120	×	×	×	√	√	√	√	×
121	√	×	×	√	√	√	√	×
122	×	√	×	√	√	√	√	×
123	√	√	×	√	√	√	√	×
124	×	×	√	√	√	√	√	×
125	√	×	√	√	√	√	√	×
126	×	√	√	√	√	√	√	×
127	√	√	√	√	√	√	√	×
128	×	×	×	×	×	×	×	√
129	√	×	×	×	×	×	×	√
130	×	√	×	×	×	×	×	√
131	√	√	×	×	×	×	×	√
132	×	×	√	×	×	×	×	√
133	√	×	√	×	×	×	×	√
134	×	√	√	×	×	×	×	√
135	√	√	√	×	×	×	×	√
136	×	×	×	√	×	×	×	√
137	√	×	×	√	×	×	×	√
138	×	√	×	√	×	×	×	√
139	√	√	×	√	×	×	×	√
140	×	×	√	√	×	×	×	√
141	√	×	√	√	×	×	×	√
142	×	√	√	√	×	×	×	√
143	√	√	√	√	×	×	×	√
144	×	×	×	×	√	×	×	√
145	√	×	×	×	√	×	×	√
146	×	√	×	×	√	×	×	√
147	√	√	×	×	√	×	×	√
148	×	×	√	×	√	×	×	√
149	√	×	√	×	√	×	×	√
150	×	√	√	×	√	×	×	√
151	√	√	√	×	√	×	×	√
152	×	×	×	√	√	×	×	√
153	√	×	×	√	√	×	×	√
154	×	√	×	√	√	×	×	√
155	√	√	×	√	√	×	×	√
156	×	×	√	√	√	×	×	√
157	√	×	√	√	√	×	×	√
158	×	√	√	√	√	×	×	√
159	√	√	√	√	√	×	×	√
160	×	×	×	×	√	×	×	√
161	√	×	×	×	×	√	×	√
162	×	√	×	×	×	√	×	√
163	√	√	×	×	×	√	×	√
164	×	×	√	×	×	√	×	√
165	√	×	√	×	×	√	×	√
166	×	√	√	×	×	√	×	√
167	√	√	√	×	×	√	×	√
168	×	×	×	√	×	√	×	√
169	√	×	×	√	×	√	×	√
170	×	√	×	√	×	√	×	√
171	√	√	×	√	×	√	×	√
172	×	×	√	√	×	√	×	√
173	√	×	√	√	×	√	×	√
174	×	√	√	√	×	√	×	√
175	√	√	√	√	×	√	×	√
176	×	×	×	×	√	√	×	√
177	√	×	×	×	√	√	×	√
178	×	√	×	×	√	√	×	√
179	√	√	×	×	√	√	×	√
180	×	×	√	×	√	√	×	√
181	√	×	√	×	√	√	×	√
182	×	√	√	×	√	√	×	√
183	√	√	√	×	√	√	×	√
184	×	×	×	√	√	√	×	√
185	√	×	×	√	√	√	×	√
186	×	√	×	√	√	√	×	√
187	√	√	×	√	√	√	×	√
188	×	×	√	√	√	√	×	√
189	√	×	√	√	√	√	×	√
190	×	√	√	√	√	√	×	√
191	√	√	√	√	√	√	×	√
192	×	×	×	×	×	×	√	√
193	√	×	×	×	×	×	√	√
194	×	√	×	×	×	×	√	√
195	√	√	×	×	×	×	√	√
196	×	×	√	×	×	×	√	√
197	√	×	√	×	×	×	√	√
198	×	√	√	×	×	×	√	√
199	√	√	√	×	×	×	√	√
200	×	×	×	√	×	×	√	√
201	√	×	×	√	×	×	√	√
202	×	√	×	√	×	×	√	√
203	√	√	×	√	×	×	√	√
204	×	×	√	√	×	×	√	√
205	√	×	√	√	×	×	√	√
206	×	√	√	√	×	×	√	√
207	√	√	√	√	×	×	√	√
208	×	×	×	×	×	×	×	×
209	√	×	×	×	×	×	×	×
210	×	√	×	×	√	×	×	√
211	√	√	×	×	√	×	×	√
212	×	×	√	×	√	×	√	√
213	√	×	√	×	√	×	√	√
214	×	√	√	×	√	×	√	√
215	√	√	√	×	√	×	√	√
216	×	×	×	√	√	×	√	√
217	√	×	×	√	√	×	√	√
218	×	√	×	√	√	×	√	√
219	√	√	×	√	√	×	√	√
220	×	×	√	√	√	×	√	√
221	√	×	√	√	√	×	√	√
222	×	√	√	√	√	×	√	√
223	√	√	√	√	√	×	√	√
224	×	×	×	×	×	√	√	√
225	√	×	×	×	×	√	√	√
226	×	√	×	×	×	√	√	√
227	√	√	×	×	×	√	√	√
228	×	×	√	×	×	√	√	√
229	√	×	√	×	×	√	√	√
230	×	√	√	×	×	√	√	√
231	√	√	√	×	×	√	√	√
232	×	×	×	√	×	√	√	√
233	√	×	×	√	×	√	√	√
234	×	√	×	√	×	√	√	√
235	√	√	×	√	×	√	√	√
236	×	×	√	√	×	√	√	√
237	√	×	√	√	×	√	√	√
238	×	√	√	√	×	√	√	√
239	√	√	√	√	×	√	√	√
240	×	×	×	×	√	√	√	√
241	√	×	×	×	√	√	√	√
242	×	√	×	×	√	√	√	√
243	√	√	×	×	√	√	√	√
244	×	×	√	×	√	√	√	√
245	√	×	√	×	√	√	√	√
246	×	√	√	×	√	√	√	√
247	√	√	√	×	√	√	√	√

Disposal of Old Electrical & Electronic Equipment

(Applicable in the European Union and other European countries with separate collection systems)

This symbol on the product or on its packaging indicates that this product shall not be treated as household waste.

Instead it shall be handed over to the applicable collection point for the recycling of electrical and electronic equipment.

By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product.

The recycling of materials will help to conserve natural resources.

Functie Setare bit Semnificatie
Viteza de transmisie	# 2 #	1
	OFF	OFF	2400bps
	OFF	ON	4800bps
	ON	OFF	9600bps
	ON	ON	19200bps(default)
Verificare paritate	# 4 #	3
	OFF	OFF	Paritate para
	ON	OFF	Impara
	OFF	ON	Fara verificare paritate 1 bit (implicit)
	ON	ON	Fara verificare paritate 2 biti

5.3 Configurare rezistenta RS-485

Functie Bit Setare Semnificatie
Rezistenta impingere sus	#6	ON Pornit (implicit)
		OFF Oprit
Rezistenta impingere jos	#7	ON Pornit (implicit)
		OFF Oprit
Opriti rezistența	#8	ON Pornit (implicit)
		OFF Oprit

5.4 Configurare interfata

Configurare pin RS-485

Radio ripple control receiver
Using RS-485 to PLC converter

Monitorizare multipla6

Abstract orange logo design with curved shapes (no text or symbols)