Datasheet

Modbus TCP Communication HIMA H41q/H51q ↔
↔↔
↔ Emerson DeltaV
3
Setting Bus Station Number (BSN):
The Bus Station Number is the address under which the safety PESs are addressed when serial
communication via RS-485 is used. This address should be the same like the numbers ending the
resource name in ELOP II from which the IP-Address is generated (see chapter 2.2.2 for details).
There is one DIP-switch on each H41q/H51q CPU (e.g. F 8650X and F 8652X for SIL3 operation)
setting the BSN and the serial transmission rate for the two integrated serial RS-485 interfaces. The
BSN is set with switches 1-5 on DIP-switch S1 in a range from 1 to 99 using standard binary coding
(for details about DIP switch settings on the CPU see [1] or the separately available CPU datasheets).
Configuring the F 8627X ethernet communication module:
The F 8627X has two DIP switches which are used for configuring the ethernet communication
module.
Figure 2.2: Recommended settings for F 8627X DIP switch S1 and S2
Figure 2.2 shows marked in red the DIP switch settings which are recommended for most ethernet
communications.
• The switches S1/1-7 are used for internal H41q/H51q communication and should be sufficient for
most applications when set as shown above.
• Switch S1/8 should be set to “Passive Mode enabled” to ensure also fast communication to the
HIMA OPC DA Server by disabling time consuming Token Passing.
• Switch S2/1 should be set according to the position where the F 8627X will be placed. “Ethernet
Channel 1” for placement next to CPU 1 or “Ethernet Channel 2” for placement next to CPU 2.
• Normally the communication modules are inserted redundant. Then Switch S2/2 should also
reflect this.
• Switch S2/3 is set to “Off” as some networking devices do not support Auto-negotiation of
transmission rate and duplex mode.
• Switch S2/4 and S2/5 should be set according to the networking hardware you use. Normally
“100 Mbit/s” and “Full duplex” is suitable with nowadays networking hardware.
• Switches S2/6-7 should be set to determine the number of HIMA OPC Servers which are
connected to this resource. (Be careful: In HIMA documentation the term “HIMA OPC Server”
refers to the HIMA OPC DA Server as is the case here.)
2.2.2 Application Software Configuration
When programming a HIMA H41q/H51q safety PES within ELOP II there are two steps necessary to
prepare the PES for data communication to any other programmable system via Modbus TCP or any
other ethernet based communication method. These are: definition of an IP address and definition of
variables to be transmitted through an ethernet communication module (definition of BUSCOM data).