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16-CH digital input - 8-CH digital output Ethernet I/O

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Availability : 2-3 weeks


415,39 €

Product From (qty) Discount
R-16DI-8DO 5 -5%
R-16DI-8DO 10 -10%
R-16DI-8DO 25 -20%

R-16DI-8DO is a digital mixed module with dual 10/100 Mbps Ethernet port and front Micro USB programming port. The tool is designed for flexible cabling needs, small installation spaces, high density I/O applications with embedded Ethernet networking. The R-16DI-8DO has 16 PNP/NPN digital inputs that can also be configured as @32 bit totalizers and 8 digital relay outputs with a maximum range of 30 V / 1 A. All totalizers are stored in non-volatile memory (FeRAM). The module is equipped with isolation between inputs, outputs and other low voltage circuits equal to 1,5 kVac. The configuration can be done through dedicated software and web server with HTML5 support. IP address, MAC address, and firmware version associated with the single module can be identified or configured on the LAN network through the SDD (Seneca Discovery Device) tool. R-16DI-8DO supports both ModBUS TCP-IP and RS485 serial communication with ModBUS RTU protocol. The R-16DI-8DO can be connected in Ethernet daisy chain mode with fault-bypass to ensure an Ethernet connection even if a module in the chain fails. Digital signals can be duplicated on one or more modules in Peer to Peer mode (I/O mirror functionality). Another advanced function is the "ModBUS Passthrough" function, thanks to which the module can divert to RS485 the requests coming from Modbus TCP-IP acting, in fact, as a gateway.


Power supply 10..40 Vdc; 19..28 Vac
Auxiliary voltage output 12 Vdc / 40 mA
Max. absorption 3 W
Max insulation 1,5 kVac
LED status indicators Power supply
I/O's status
STS (IP / DHCP address)
RX / TX (Data Rx/Tx via RS485)
Ethernet TRF / LNK
Input channels 16 DI
tipo: PNP con alim. interna/esterna, NPN con alim. Interna
tensione: Soglia OFF / ON: <8 V; > 9 V
frequenza max: 5 kHz, contatori ritentivi 32 bit
corrente assorbita: 2,25 mA
conformità: IEC 6113-2 Type 1 & 3
Output channels 8 DO isolated one each other
type: SPST relays contact 
Voltage/Current mx: 30 V ac-dc / 1 A
Response time: 20 ms (P2P)
Duration of contacts: 5*106 op. mec. / 105 op. with load
Supported protocols ModBUS RTU, ModBUS TCP-IP, http
Features Dual Daisy Chain Ethernet Connection
LAN fault bypass (active connection between the two Ethernet ports of the device in case of power failure)
Max 32 Peer to Peer Rules (I/O Mirror) - No Master required
Frequency Meters, TON, TOFF, Period
ModBUS Passthrough (TCP-IP to RS485)
Identification and configuration IP, MAC, Firmware via SDD tool
Memory FeRAM for counters backup
Communication interfaces Nr. 2 Ethernet ports (with fault-bypass LAN function) 10/100 baseT on RJ45
Nr. 1 RS485 port on terminals M23-M24-M25
Nr. 1 Micro USB (programming)
Communication speed Up to 115.200 bps (RS485) / 100 Mbps (TCP-IP)
ModBUS communication Up to 64 nodes without repeater and max speed 115 kbps 
Programming SENECA Studio (configuration tool)
Embedded Web Server
Protection degree IP20
Housing Material PC / ABS self-extinguishing UL94-V0, black color
Connections Terminals pitch 3.5 mm, Micro USB connector and double RJ45 connector
Mounting On DIN rail EN 60715, wall-mounted / panel-mounted
Operating temperature -20..+65°C
Dimension (WxHxD) 106 x 90 x 32 mm
Weight 170 g
Certifications CE
Norms EN61000-6-4, EN61000-6-2, EN61010-1
  • type remote I/O
  • function digital outputs|digital inputs
  • construction Din-Rail 35 mm

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