Introduction:

ICP DAS introduce its latest product, the UA-2841M, an advanced IIoT Communication Server equipped with quad-core ARM CPU and 2 Ethernet ports. UA features the data concentrator and IIoT gateway functions that facilitate seamless integration between IT and OT system devices. This accelerates cloud integration, and simplify the deployment of the Industrial IoT, resulting in significant cost and time saving for users.

UA-2841M is equipped with built-in features such as: OPC UA Server, RESTful Service, SNMP Agent, and MQTT Broker/Client function, along with multiple information encryption and security verification. The UA system architecture can connect to MES, ERP, Cloud services in the IT field, as well as SCADA software in the OT field. Through Modbus TCP/RTU/ASCII, MQTT, or EtherNet/IP communication protocol, UA access and control the data of remote I/O modules and controllers in factories or buildings. And then it converts the data to IT or industrial control systems or software for monitoring, cloud integration, network APP or database application, and other needs.

System Architecture:

Features:

• Simultaneous Writing to Remote Database and Local Data Logger
• Offline Data Recovery Mechanism for Remote Database
• Support to Enable OPC UA, MQTT, SNMP and RESTful at the Same Time
• MQTT Broker (Including WebSocket)
• Support a Complete Information Protection Mechanism
      - HTTPS, SNMP v3, Communication Encryption, Block List
• IoT Cloud Platform Connection
      - Microsoft Azure, Amazon Web Services, IBM Bluemix, Alibaba Cloud
• IFTTT Logic Control Triggers the APP Notification Function
• PID Logic Operation Function

Advantage Table:

Type Name	Advanced Communication Server	Standard Communication Server		Compact Communication Server
Server Series/Name	UA-2841M	UA-2241 Series	UA-5231Series	UA-7231M
Security Functions
SNMP(V3) Agent	TLS authentication	-
Firewall: Dynamic Blacklist	Automatically places abnormal IPs into the dynamic blacklist based on configurable conditions
HTTPS	Enable https and provide X.509 certificate and key upload for verification use
OPC UA Server	Authentication: Username/Password, X.509 Certificate           Security Policy: > Basic128Rsa15 (Sign / Sign & Encrypt)                                              > Basic256 (Sign / Sign & Encrypt)                                              * The following items are only supported by UA-2841M                                              > Basic256Sha256 (Sign / Sign & Encrypt)                                              > Aes128_Sha256_RsaOaep (Sign / Sign & Encrypt)                                              > Aes256_Sha256_RsaPss (Sign / Sign & Encrypt)
MQTT Client	Provides SSL 及 TLS encryption verification, can be checked through Microsoft Azure, Amazon Web Services, etc.
	Supports TLS 1.3 and below	Supports TLS 1.2 and below
MQTT Broker	Provides SL and TLS encryption and security authentication
	Supports TLS 1.3 and below	Supports TLS 1.2 and below
Hardware Specification
CPU	ARM Quad-core, 1.6 GHz/Core	ARM, 1 GHz
SDRAM	DDR4 2 GB	DDR3 512 MB
Flash	8 GB	512 MB	8 GB
Ethernet	10/100/1000 Base-TX × 2	10/100/1000 Base-TX × 2	10/100/1000 Base-TX × 1	10/100 Base-TX × 1 PoE
MicroSD	Yes (Max. 2 TB)	Yes (Max. 32 GB)
RS-232/RS-485	1 x RS-232 (console) 1 x RS-232 2 x RS-485 (2500 VDC Isolated)			1 x RS-232 (console) 1 x 5-wire RS-232/485 (2500 VDC Isolated)
XV-board Expansion	1 optional XV511i, expands 4 RS-485 ports. Or 1 optional  XV107/107A/110/111/111A/116/119/303/306/307/310，expands I/O			-
USB	2		1	-
Dimensions (mm)	42 x 164 x 130	35 x 167 x 119	117 x 126 x 58	97 x 114 x 38
Software Specification: Protocol
OPC UA Server	Max. 50 Sessions Max. 8000 Tags	Max. 20 Sessions Max. 8000 Tags
MQTT Broker	non-SSL & SSL / WebSocket
	Max. 2100	Max. 400
MQTT Client	non-SSL & SSL
	Max. 500	Max. 200
Modbus RTU/ASCII Master	32 *3 Ports = 96 Devices			32 *1  Port = 32 Devices
Modbus TCP Master	Max. 250 Devices	Max. 100 Devices
EtherNet/IP	Max. 125 Devices	Max. 50 Devices
SNMP v3 Agent	Max. 10 Read / 10 Write	-
RESTful	Max. 20 Read / 1 Write	-
Software Specification: Data Storage
MS SQL / My SQL	Max. 3 Databases per Time	1 Databases per Time
Data log	Max. 1000 Tags per link	Max. 1000 Tags
Local Data log	Stored in the local MicroSD card or SSD (CSV format)	Stored in the local MicroSD card (CSV format)

 
For more information, please visit the following website:
https://www.icpdas.com/en/product/UA-2841M
https://www.icpdas.com/en/product/guide+IIoT+Controller_Server+Communication__Server#553