What is BS EN 61784-3-1 - CPF 1 fieldbus about?
BS EN 61784-3-1 is a part of the IEC 61784 multi-series that discusses industrial communication networks. BS EN 61784-3-1 specifies a safety communication layer (services and protocol) based on CPF 1 of IEC 61784-1 and IEC 61158 Types 1 and 9. BS EN 61784-3-1 identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer.
BS EN 61784-3-1 defines mechanisms for the transmission of safety-relevant messages among participants within a distributed network using fieldbus technology in accordance with the requirements of IEC 61508 series for functional safety. These mechanisms may be used in various industrial applications such as process control, manufacturing automation and machinery.
Who is BS EN 61784-3-1 - CPF 1 fieldbus for?
BS EN 61784-3-1 on functional safety of fieldbuses is useful for:
- Manufacturing companies who want to incorporate safety-related systems
- Manufacturers of compliant devices
- Assessors of compliant devices
- Functional safety managers
- IT experts
Why should you use BS EN 61784-3-1 - CPF 1 fieldbus?
Fieldbus technology is now considered well accepted and well-proven. Thus, fieldbus enhancements continue to emerge, addressing applications for areas such as real-time, safety-related and security-related applications.
BS EN 61784-3-1 guides you about the relevant principles for functional safety communications with reference to IEC 61508 series and specifies several safety communication layers (profiles and corresponding protocols) based on the communication profiles and protocol layers of IEC 61784-1, IEC 61784-2 and the IEC 61158 series.
In conclusion, BS EN 61784-3-1 helps you to understand CPF 1 fieldbus better to incorporate it into your industrial communication system. This can help you to transmit data between the industrial machines more securely.
What’s changed since the last update?
BS EN 61784-3-1:2010 supersedes EN 61784-3-1:2008. The main technical changes in BS EN 61784-3-1:2010 with respect to EN 61784-3-1:2008 are listed below:
- Updates in relation to changes in EN 61784-3
- Adjustment of Figure 5
- Change of sequence number from two octets to four octets in 7.2.2 to match the final protocol from the consortium
- Addition of details for time synchronization in 7.2.4
- Addition of information for safety response time in 9.3
