1-Port Modbus Gateway EKI-1221/CI/I EKI-1222/CI/I 2-Port Modbus Gateway EKI-1224/CI/I 4-Port Modbus Gateway Features 2 x 10/100 Mbps Ethernet ports for LAN redundancy Integrates Modbus TCP and Modbus RTU/ASCII networks Supports up to 921.6 kbps and any baud rate setting Supports up to 16 connections per serial port under Modbus master mode and 32 sessions under Modbus slave mode Software-selectable RS-232/422/485-2w/485-4w communication Mountable via DIN rail and wall mount Built-in 15 kV ESD protection for all serial signals Automatic RS-485 data flow control Supports surge protection for DC power ports with line-to-line (1 kV) and line-to-earth (2 kV) for signal ports with 2 kV models support a wide operating temperature C models support isolation and a wide operating temperature EKI-1221 EKI-1221CI-DE EKI-1222 EKI-1222CI-DE EKI-1224 RoHS COMPLIANT 2002/95/EC Introduction The EKI-1200 series Modbus gateways are bi-directional gateways for integrating new and existing Modbus/RTU and Modbus/ASCII serial devices to newer TCP/IP networked-based devices. The EKI-1221/1222/1224 feature two independent Ethernet ports and MAC addresses to provide redundancy and reliability. They provide a simple and cost-effective way to bring remote management and data accessibility to thousands of devices that cannot otherwise connect to a network. The EKI-1221/1222/1224 allow users to select master or slave operation mode for each serial port. In addition to allowing an Ethernet master to control serial slaves, they also allow serial masters to control Ethernet slaves. Specifications Ethernet Communications General Compatibility IEEE 802.3, IEEE 802.3u LED Indicators System: Power, System Status Speed 10/100 Mbps LAN: Speed, Link/Active No. of Ports 2 Serial: Tx, Rx Port Connector 8-pin RJ45 Reboot Trigger Built-in WDT (watchdog timer) Protection Built-in 2.25 k VDC magnetic isolation Mechanics Serial Communications Dimensions (W x H x D) EKI-1221/I-CE EKI-1221CI-DE EKI-1222/I-CE Port Type RS-232/422/485-2w/485-4w, software selectable EKI-1222CI-DE: 30 x 140 x 95 mm (1.18 x 5.51 x 3.74 ) (EKI-1224CI-CE supports RS-422/485 only) EKI-1224/CI/I-CE: 42 x 140 x 95 mm (1.65 x 5.51 x 3.74 ) No. of Ports EKI-1221: 1 Enclosure Metal with solid mounting hardware EKI-1222: 2 Mounting DIN-rail, Wall EKI-1224: 4 Weight EKI-1221: 0.472 Kg Port Connector DB9 male EKI-1222: 0.48 Kg EKI-1221CI-DE EKI-1222CI-DE also provide Terminal Block EKI-1224: 0.555 Kg Data Bits 5, 6, 7, 8 IP Rating IP30 Stop Bits 1, 1.5, 2 Parity None, Odd, Even, Space, Mark Power Requirements Flow Control XON/XOFF, RTS/CTS Power Input 12 ~ 48 V , redundant dual inputs Baud Rate 50 bps ~ 921.6 kbps, any baud rate setting DC Power Connector Terminal block Serial Signals CE Version Power Consumption EKI-1221: 3.2 W RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR EKI-1222: 3.2 W RS-422: TxD+, TxD-, RxD+, RxD-, GND EKI-1224: 4.1 W RS-485 2-wire: Data+, Data-, GND DE Version DB9: Environment RS-232 isolation: TxD, RxD, CTS, RTS, GND Operating Temperature EKI-1221/EKI-1222/EKI-1224: -10 ~ 60 C (14 ~ 140 F) RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR CI & I models: -40 ~ 80 C (-40 ~ 176 F) Terminal Block ( From top to bottom): Storage Temperature -40 ~ 85 C (-40 ~ 185 F) RS-422: GND, RxD-, RxD+, TxD+, TxDRS- Operating Humidity 10 ~ 95% RH 485 2-wire: GND, NC, NC, TxD+, TxDRS- 485 4-wire: GND, RxD-, RxD+, TxD+, TxD- Protection 15 KV ESD for all signals Regulatory Approvals EMC CE, FCC Part 15 Subpart B (Class A) Software Hazardous location UL/cUL (Class I, Division 2, Groups A, B, C and D), ATEX (Zone 2 Ex nA nC IIC T4 Gc) OS Support Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux Utility Software Advantech EKI Device Configuration Utility Port to Port Isolation ( CI models) Operation Modes Modbus RTU Master/Slave mode Serial to Ethernet 2.25 k VDC Modbus ASCII Master/Slave mode Serial to Power 2 k VDC Configuration Windows Utility, Telnet Console, Web Browser Ethernet to Power 2.25 k VDC Protocols ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, SMTP, ARP, NTP Industrial Wireless and Protocol Gateway Solutions All product specifications are subject to change without notice. Last updated: 25-Dec-2020EKI-1221/CI/I EKI-1222/CI/I EKI-1224/CI/I Dimensions Unit: mm 95 3.740 EKI-1221 104 4.094 30 1.181 Panel Cut-out Dimensions: 95 x 140 x 30 mm (3.74 x 5.512 x 1.181 ) 95 3.740 EKI-1221CI-DE 95 3.740 95 3.740 104 4.094 30 1.181 104 4.094 30 1.181 104 4.094 30 1.181 Panel Cut-out Dimensions: 95 x 140 x 30 mm (3.74 x 5.512 x 1.181 ) 104 4.094 EKI-1222 95 3.740 33 35 30.50 40 1.299 1.378 42 1.654 1.201 1.575 42 1.654 95 3.740 15 0.591 95 3.740 104 4.094 30 1.181 Panel Cut-out Dimensions: 95 x 140 x 30 mm (3.74 x 5.512 x 1.181 ) 104 4.094 95 3.740 33 35 30.50 40 1.299 1.378 42 1.654 1.201 1.575 42 1.654 15 0.591 Online Download www.advantech.com/products 95 3.740 20.53 0.808 20.53 0.808 11.40 0.449 11.40 0.449 68 39 68 6839 39 68 39 68 39 2.677 1.535 2.677 2.677 1.535 1.535 2.677 1.535 2.677 1.535 140 5.512 9.80 140 5.512 9.80 140 5.512 140 5.512 140 5.512 140 5.512 140 5.512 0.386 0.386 47.95 47.05 47.95 47.05 47.95 47.05 47.95 47.9547.05 47.05 47.95 47.05 47.95 47.05 1.888 1.852 1.888 1.852 1.888 1.852 1.888 1.888 1.852 1.852 1.888 1.852 1.888 1.852 140 5.512 140 5.512 140 5.512 140 5.512 140 5.512 149.80 5.898 149.80 5.898 149.80 5.898 149.80 5.898 149.80 5.898 149.80 5.898 149.80 5.898