• Puerto Rico(USD $)
  • Palestinian Authority(ILS ₪)
  • Portugal(EUR €)
  • Palau(USD $)
  • Paraguay(PYG ₲)
  • Qatar(QAR ر.ق)
  • Ascension Island(SHP £)
  • Andorra(EUR €)
  • United Arab Emirates(AED د.إ)
  • Afghanistan(AFN Af)
  • Antigua and Barbuda(XCD $)
  • Anguilla(XCD $)
  • Albania(ALL L)
  • Armenia(AMD Դ)
  • Netherlands Antilles(USD $)
  • Angola(USD $)
  • Argentina(USD $)
  • American Samoa(USD $)
  • Austria(EUR €)
  • Reunion(EUR €)
  • Australia(AUD AU$)
  • Aruba(AWG ƒ)
  • Aland lslands(EUR €)
  • Azerbaijan(AZN ман)
  • Romania(RON L)
  • Bosnia and Herzegovina(BAM КМ)
  • Barbados(BBD BBD)
  • Serbia(RSD din)
  • Bangladesh(BDT ৳)
  • Russia(USD $)
  • Belgium(EUR €)
  • Burkina Faso(XOF Fr)
  • Bulgaria(BGN лв)
  • Rwanda(RWF ₣)
  • Bahrain(BHD .د.ب)
  • Burundi(BIF ₣)
  • Benin(XOF Fr)
  • Bermuda(BMD BD$)
  • Brunei(BND B$)
  • Bolivia(BOB Bs.)
  • Saudi Arabia(SAR ر.س)
  • Solomon Islands(SBD Si$)
  • Brazil(USD $)
  • Seychelles(USD $)
  • Bahamas(BSD BSD)
  • Sudan(SDG ج.س.)
  • Bhutan(BTN Nu.)
  • Sweden(SEK kr)
  • Singapore(SGD S$)
  • Botswana(BWP P)
  • St.Helena(SHP £)
  • Slovenia(EUR €)
  • Belarus(USD $)
  • Svalbard and Jan Mayen(USD $)
  • Belize(BZD Be)
  • Slovakia(EUR €)
  • Sierra Leone(SLL Le)
  • San Marino(EUR €)
  • Senegal(XOF Fr)
  • Somalia(SOS Sh)
  • Canada(CAD $)
  • Suriname(USD $)
  • Cocos(Keeling)Islands(AUD AU$)
  • Congo(DRC)(CDF ₣)
  • Sao Tome and Principe(USD $)
  • Central African Republic(XAF ₣)
  • El Salvador(USD $)
  • Congo(XAF ₣)
  • Switzerland(CHF ₣)
  • Cote d'Ivoire(XOF Fr)
  • Syria(SYP ل.س)
  • Swaziland(USD $)
  • Cook Islands(NZD $)
  • Chile(USD $)
  • Cameroon(XAF ₣)
  • China(CNY ¥)
  • Colombia(USD $)
  • Tristan da Cunha(GBP £)
  • Costa Rica(CRC ₡)
  • Turks and Caicos Islands(USD $)
  • Chad(XAF ₣)
  • Cuba(CUP $)
  • Cape Verde(CVE $)
  • Togo(XOF Fr)
  • Thailand(THB ฿)
  • Christmas Island(AUD AU$)
  • Cyprus(EUR €)
  • Tajikistan(TJS ЅМ)
  • Czech Republic(CZK Kč)
  • Tokelau(NZD $)
  • Timor-Leste(USD $)
  • Turkmenistan(TMT m)
  • Tunisia(USD $)
  • Tonga(TOP T$)
  • Turkey(USD $)
  • Trinidad and Tobago(TTD TTD)
  • Germany(EUR €)
  • Tuvalu(AUD AU$)
  • Taiwan(TWD NT$)
  • Djibouti(DJF ₣)
  • Tanzania(TZS Sh)
  • Denmark(DKK kr)
  • Dominica(XCD $)
  • Dominican Republic(DOP $)
  • Ukraine(UAH ₴)
  • Uganda(UGX Sh)
  • Algeria(DZD د.ج)
  • United States Minor Outlying Islands(USD $)
  • Ecuador(USD $)
  • United States(USD $)
  • Estonia(EUR €)
  • Egypt(EGP E£)
  • Western Sahara(MAD د.م.)
  • Uruguay(UYU $)
  • Uzbekistan(UZS лв)
  • Vatican City(EUR €)
  • Eritrea(ERN Nfk)
  • St.Vincent and the Grenadines(XCD $)
  • Spain(EUR €)
  • Ethiopia(ETB Br)
  • Venezuela(USD $)
  • Virgin Islands,British(USD $)
  • Virgin Islands(USD $)
  • Vietnam(VND ₫)
  • Vanuatu(VUV Vt)
  • Finland(EUR €)
  • Fiji Islands(FJD FJ$)
  • Micronesia(USD $)
  • Faroe Islands(DKK kr)
  • France(EUR €)
  • Wallis and Futuna(XPF ₣)
  • Gabon(XOF Fr)
  • United Kingdom(GBP £)
  • Samoa(WST T)
  • Grenada(XCD $)
  • Georgia(USD $)
  • French Guiana(EUR €)
  • Guernsey(GBP £)
  • Ghana(GHS ₵)
  • Gibraltar(GBP £)
  • Greenland(DKK kr)
  • Gambia(GMD D)
  • Guinea(GNF ₣)
  • Guadeloupe(EUR €)
  • Equatorial Guinea(XAF ₣)
  • Greece(EUR €)
  • Guatemala(GTQ Q)
  • Guam(USD $)
  • Guinea-Bissau(XOF Fr)
  • Guyana(GYD $)
  • Hong Kong SAR China(HKD HK$)
  • Heard Island and McDonald Islands(AUD AU$)
  • Honduras(HNL L)
  • Croatia(HRK Kn)
  • Haiti(USD $)
  • Yemen(YER ﷼)
  • Hungary(HUF Ft)
  • Indonesia(IDR Rp)
  • Mayotte(EUR €)
  • Ireland(EUR €)
  • Israel(ILS ₪)
  • Isle of Man(GBP £)
  • India(INR ₹)
  • British Indian Ocean Territory(USD $)
  • South Africa(USD $)
  • Iraq(USD $)
  • Iran(IRR ﷼)
  • Iceland(ISK Kr)
  • Italy(EUR €)
  • Zambia(USD $)
  • Jersey(GBP £)
  • Zimbabwe(USD $)
  • Jamaica(JMD $)
  • Jordan(USD $)
  • Japan(JPY ¥)
  • Kenya(KES Sh)
  • Kyrgyzstan(KGS С̲)
  • Cambodia(KHR ៛)
  • Kiribati(AUD AU$)
  • Comoros(KMF Fr)
  • St.Kitts and Nevis(XCD $)
  • North Korea(KPW ₩)
  • Korea(KRW ₩)
  • Kuwait(KWD دينار)
  • Cayman Islands(KYD $)
  • Kazakhstan(KZT 〒)
  • Laos(LAK ₭)
  • Lebanon(LBP ل.ل)
  • St.Lucia(XCD $)
  • Liechtenstein(CHF ₣)
  • Sri Lanka(LKR Rs)
  • Liberia(USD $)
  • Lesotho(USD $)
  • Lithuania(EUR €)
  • Luxembourg(EUR €)
  • Latvia(EUR €)
  • Libya(USD $)
  • Morocco(MAD د.م.)
  • Monaco(EUR €)
  • Moldova(MDL L)
  • Montenegro(EUR €)
  • St. Martin (French part)(EUR €)
  • Madagascar(USD $)
  • Marshall Islands(USD $)
  • Macedonia,Former Yugoslav Republic of(MKD ден)
  • Mali(XOF Fr)
  • Myanmar(MMK K)
  • Mongolia(MNT ₮)
  • Macao SAR China(MOP P)
  • Northern Mariana Islands(USD $)
  • Martinique(EUR €)
  • Mauritania(USD $)
  • Montserrat(XCD $)
  • Malta(EUR €)
  • Mauritius(MUR ₨)
  • Maldives(MVR ރ.)
  • Malawi(MWK MK)
  • Mexico(USD $)
  • Malaysia(MYR RM)
  • Mozambique(USD $)
  • Namibia(USD $)
  • New Caledonia(XPF ₣)
  • Niger(XOF Fr)
  • Norfolk Island(AUD AU$)
  • Nigeria(NGN ₦)
  • Nicaragua(NIO C$)
  • Netherlands(EUR €)
  • Norway(USD $)
  • Nepal(NPR ₨)
  • Nauru(AUD AU$)
  • Niue(NZD $)
  • New Zealand(NZD $)
  • Oman(OMR ر.ع.)
  • Panama(USD $)
  • Peru(PEN S/)
  • French Polynesia(XPF ₣)
  • Papua New Guinea(PGK K)
  • Philippines(PHP ₱)
  • Pakistan(PKR ₨)
  • Poland(PLN zł)
  • St.Pierre and Miquelon(EUR €)
  • Pitcairn Islands(NZD $)
USB to RS485 Modbus Cable Adapter Type-A USB Male to Dual 3Pin Screw Terminals Serial Converter
USB to RS485 Modbus Cable Adapter Type-A USB Male to Dual 3Pin Screw Terminals Serial Converter
USB to RS485 Modbus Cable Adapter Type-A USB Male to Dual 3Pin Screw Terminals Serial Converter
USB to RS485 Modbus Cable Adapter Type-A USB Male to Dual 3Pin Screw Terminals Serial Converter
USB to RS485 Modbus Cable Adapter Type-A USB Male to Dual 3Pin Screw Terminals Serial Converter
USB to RS485 Modbus Cable Adapter Type-A USB Male to Dual 3Pin Screw Terminals Serial Converter

USB to RS485 Modbus Cable Adapter Type-A USB Male to Dual 3Pin Screw Terminals Serial Converter

Color:Black Length:1.8m/6ft Type:RS485 to Modbus  Chipset:FTDI FT232R+SP485 Connector:Type-A USB Male to Dual 3Pin Screw Terminals Compatible:Windows XP,Win 7/8/10/10,Vista,Linux,Mac Os,etc.
$7.50 USD $0.00 USD
FINE Electronics
Color
Black
Clear

The USB to RS485 Modbus Cable Adapter is a versatile and reliable solution for connecting your USB-enabled device to an RS485 Modbus network. With its Type-A USB male connector and dual 3Pin screw terminals, this cable adapter provides a secure and stable connection. It is compatible with various operating systems, including Windows XP, Win 7/8/10, Vista, Linux, and Mac OS. The cable is 1.8m/6ft long, and its black color adds a touch of elegance to your setup. Get high-quality performance and ease of use with our USB to RS485 Modbus Cable Adapter.

Modbus RTU Cable

Modbus TCP Cable

USB to RS485 Modbus Interface Cable

MAX-485 TTL to RS-485 conversion Cable

Modbus gateway is to convert one Modbus protocol frame into other protocol frame.For example, the data of Modbus RTU and Modbus TCP data can be converted to each other; the application development of master request and slave response can also be carried out to improve the efficiency of protocol conversion; The storage gateway replaces the host to initiate active reporting of Modbus requests.

The device is in Modbus gateway mode to ensure the Modbus conversion efficiency to discard non-Modbus data and prevent interference to the serial bus.

Several common Modbus gateways

The Modbus gateway mentioned below refers to Modbus RTU to Modbus TCP, and does not involve the processing of Modbus ASCII data frames. Modbus ASCII only supports transparent transmission.

Simple Protocol Conversion

The most common and common Modbus gateway function, simple protocol conversion is the most efficient Modbus gateway mode for data processing, it just extracts key fields in the data, and then encodes the extracted data with another protocol (Modbus RTUßà Modbus TCP) to send


Multihost Gateway

The multi-host gateway can only work in the TCP server mode, and can process multiple Modbus TCP host requests at the same time. The serial server receives other host requests when one host request is not completed. At this time, the serial server will perform on the RS485 bus. Arbitration output (in layman's terms, it blocks subsequent instructions).

Storage gateway

The first thing to understand is that the communication rate of the serial port is much lower than that of the network port. The host usually only processes a few registers when requesting the RTU device. The "storage gateway" is used in this working environment. 

Configurable Gateway

In order to solve the problem of slow return of the first command of the "storage" gateway, a configuration gateway can be used. The configuration gateway also adopts the method of obtaining the register content of the RS485 bus slave station by querying the "storage" gateway in advance.

In order to solve the problem of slow return of the first command, the required register list must be configured inside the gateway in advance.

The difference between Modbus RTU and Modbus TCP:

1. Different concepts

MODBUS is a standard industrial control data exchange protocol, which can exchange protocol data through RTU and ASCIIRTU transmits data directly through binary data, while TCP transmits data in the form of TCP code by converting each byte of binary data into a fixed two-digit hexadecimal string, and then concatenating them in sequence. RTU usually uses the most

2. Different communication methods

Ethernet, the corresponding communication mode is MODBUS TCP

Asynchronous serial transmission (various media, such as wired RS-232-/422/485/; optical fiber, wireless, etc.), the corresponding communication mode is MODBUS RTU or MODBUSASCII. High-speed token transmission network, the corresponding communication mode is ModbusPLUS