Technical data

A-B SuperBridge Technical Reference
12
2. Check all communication parameters in all MCs. All parameters must be equal except the
“Controller Number”, which must be different for all MCs.
3. Check the corresponding line parameter settings in SUPERB.INI. See [PortN] Sections (page
41).
4. All MC²s should show a blinking yellow light on the serial port, indicating that they are
receiving telegrams from SB. If it does not blink at all, there are problems with the cable, SB
serial port or RS-422 converter.
5. The green light should also blink. If there are more than one MCs in the system, it should not
blink as often as the yellow light. If it does not blink at all, there are problems with the line
parameters or controller number.
6. A LastFatalErr of -13 in the MC Combined Diagnostic Screen (page 34) indicates that the MC
actually is returning telegrams, but the model and/or version is not supported by SB. An
upgrade of either SB or the MC software version may be necessary. See Supported functions
(page 23).
SETTING UP PLC CONTROLLERS FOR FILE COPY
If MC data in SB files are to be used in PLC ladder logic, a file copy scheme can be enabled,
where SB writes and reads files from one or more PLCs. See PLC File Specification (page 14).
Typically, one PLC is the host for SB, holding master versions of the two control files that are red
by SB (N13 and F15). The host PLC normally also holds copies of the two report files that are
written by SB (N12 and F14). In some installations several PLCs serve as hosts for MCs, and
the files are split between them. File copy is always attempted, solicited from SB, when the
Segments entry in the [Sizes] Section (page 41) is greater than zero.
Allocating A-B files
For successful file copy to take place, files must be allocated in the host PLCs. Normally two
integers (N) and two floating points (F) files are created. File sizes are dependent on the number
of MCs connected, see Controllers entry in the [Sizes] Section (page 41). To allocate PLC files,
See [4], page 10-1. File sizes (number of elements) should be at least
• For copies of Integer Report File, N12 (page 14), 8 times the number in Controllers entry in
the [Sizes] Section (page 41).
• For master versions of Integer Control File, N13 (page 16), 7 times the number in Controllers
entry in the [Sizes] Section (page 41).
• For copies of Floating Point Report File, F14 (page 18), 8 times the number in Controllers
entry in the [Sizes] Section (page 41).
• For master versions of Floating Point Control File, F15* (page 19), 3 times the number in
Controllers entry in the [Sizes] Section (page 41).
*Note: Only SLC5/03 and SLC5/04 versions support floating point files and data transfer.
The PLC host files do not have to be N12, N13, F14 and F15, but they have to be the same
category (N and F files). It is a good idea to use the SB file names (N12, N13, F14 and F15) if
they are free in the host PLC; it makes PLC programming easier, using this manual.
SB Configuration for File Copy
File copy is enabled by setting entries in SUPERB.INI. A Segments entry in the [Sizes] Section
(page 41) greater than zero enables file copy. Normally, four segments per five MCs are used.