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Modbus Security - Modbus Serial Firewall
PortBloque S

Modbus Serial Firewall

$475 USD
Made in California

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STRICTLY MODBUS SECURITY
PortBloque™ ("port block") S provides perimeter security to protect serial Modbus devices from attacks.

Inspects Modbus query contents 

Deep packet inspection (DPI) filters queries. Modbus function codes, registers, and values that you have not explicitly permitted are blocked. 

Creates real-time logs
Traffic and system activity can be sent to a syslog server for analysis at a later time. Key metrics are reported on the dashboard.  

Sets up in minutes
The simple, intuitive web interface lets you create Modbus rules quickly.  

Provides secure web interface
The web interface is login-secured and firewall-protected so only computers that you specify are permitted access.
  
NETWORK DIAGRAM
PortBloque S Modbus Serial Security Diagram
FILTERS ANYTHING AND EVERYTHING
Modbus rules protect slaves by blocking commands that could lead to harfmful consequnces.

With a few clicks and fill-ins, you can define Modbus function codes, registers, and values.  Take a look at how easy it is:
Enter the Modbus device IDs.
Security - Modbus device IDs
Select the types of Modbus function codes you want those devices to receive
Security - Modbus function codes
Add your own function codes if needed.  
Security - custom codes
Define register and value ranges.
Security - Modbus addresses
KEY FEATURES
PortBloque S

Firewall Rules
   ■  Modbus deep packet inspection (DPI):
─ Device IDs:  single or group, incl. broadcast ID 
─ Function codes:  1-8, 11,12, 15-17, 20-24, 43; four user-defined codes
─ Registers 
─ Values 
   ■  Bidirectional filtering  


Serial Protocols
   ■  Modbus RTU 
   ■  Modbus ASCII


Data Rate
   ■  300 to 115.2K bps (async)

Interfaces
   ■  RS-485 2-wire, RS-422 4-wire, RS-232
   ■  Host/Slave: 10-pin terminal block
   ■  Host: DB9
   ■  Slave: DB9
   ■  Management: DB9
   ■  Web: RJ45 Ethernet (10/100BaseT)


Web Management
   ■  Easy click configuration 
   ■  Login-secure levels: Superuser, User 
   ■  Dashboard firewall metrics

 
Logging
    ■  Syslog    

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ORDER INFORMATION

PortBloque S
$475.00 USD
 
I. INTERNATIONAL - To order from outside the contiguous (48) United States and International, please use the Order Request form.

II. NATIONAL - T
o order from inside the contiguous (48) United States:

We accept payment in the form of most major credit cards, debit cards and even personal checks via our payment processing partner, PayPal – but no, you do NOT need to have an account with PayPal to pay us! You can select a quantity up to 5 from the dropdown and click on the 'Buy Now' button. Orders ship within one week via UPS Ground.
To order a quantity greater than 5, please use the Order Request form.
PortBloque S (quantity+shipping):