System Manual Compact Systems 4 Communication
HI 800 141 E Rev. 2.02 Page 23 of 110
Ethernet operation may be disturbed!
Ensure that no network rings result from interconnecting the controllers. Data packets
may only travel to a system over a single path.
If controllers and remote I/Os with different versions of operating systems are connected via
safeethernet, the following cases must be observed:
Operating system of
controller
Operating system of
remote I/O
safeethernet connection possible?
Table 15: Connection of Controllers and Remote I/Os with Different Operating Systems
Controllers with different operating system versions (CPU OS V7 and higher and CPU OS up to
V7) can be connected with cross-project communication, refer to the communication manual (HI
800 101 E)
4.2.2 Maximum Communication Time Slice
The maximum communication time slice is the time period in milliseconds (ms) and per cycle
assigned to the processor system for processing the communication tasks. If not all upcoming
communication tasks can be processed within one cycle, the whole communication data is
transferred over multiple cycles (number of communication time slices > 1).
When calculating the maximum response times allowed, the number of communication time
slices must be equal to 1, see the communication manual (HI 801 101 E). The duration of the
communication time slice must be set such that, when using the communication time slice, the
cycle cannot exceed the watchdog time specified by the process.
4.2.3 Connectors for safeethernet/Ethernet
For networking via safeethernet/Ethernet, the compact systems are equipped with 2 or 4
connectors, depending on the model, which are located on the housing's lower and upper sides.
To interconnect the HIMatrix systems, only interference-free Ethernet cables may be used, e.g.,
shielded (STP)!
4.2.4 Communication with the PADT
A HIMatrix controller communicates with a PADT via Ethernet. A PADT is a computer that is
installed with a programming tool, either SILworX or ELOP II Factory. The programming tool
must comply with the operating system version of the controller.
CPU OS V7 and higher: SILworX
CPU OS up to V7: ELOP II Factory
The computer must be able to reach the controller via Ethernet.
A controller can simultaneously communicate with up to 5 PADTs. If this is the case, only one
programming tool can access the controller with write permission. The remaining programming
tools can only read information. If they try to establish a writing connection, the controller only
allows them a read-only access.
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