BECKHOFF CX1100-000x - Manual (Page 11)

Product overview
Embedded PC 9
Firmware Version:
These two bytes contain the hex decimally coded version number of the CX1100 firmware. E.g. the first byte could
show B3(hex): this results in firmware version B3.
Firmware Revision:
These two bytes contain the hex decimally coded revision number of the CX1100 firmware. E.g. the byte could show
00: this results in revision 00.
Service Request / Response Bitfield: (nur für CX1100-0002 / -0003)
These two bytes contain a sequence of bits, by which certain service functions may be executed. The service
function is invoked by setting the appropriate request bit, the controller executes and sets the response bit. Before
the same function can be invoked again, the request bit must be set to zero and wait until the response bit is also set
to zero. An execution error is signaled by raising response bit 7.
Bitfeld Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Request - - - - - Link Images Remap Reset Node
Response Error - - - - Images Linked Remapped Reset Done
Reset Node:
with this bit, a software reset of the 80C165 microcontroller can be performed. This is different from the hardware
reset which may be performed in the Auxiliary Control Block (ACB).
Remap:
with this bit, the two-byte PLC interfaces normally residing in the input/output process areas can be remapped into
the general control block for K-Bus and IP-Link. Thus the input/output process image areas can be kept clean and for
the sole purpose of storing I/O-data.
Link Images:
if set, this bit links the K-Bus logically to the IP-Link in the case of error occurrence - meaning that if one of them
stops operating, the other one is stopped as well. By default, this bit is set so stopping both I/O systems in case of
error is the standard behavior.
Watchdog Time:
With the request of an I/O cycle through "PD cycle request", a watchdog timer with this specified millisecond time ist
started. If the cycle is not being restarted by a next "PD cycle request", the watchdog elapses and as a consequence
the output process image is zeroed. This resets all outputs to a safe state (OFF). If another value than the default
100ms is written to this cell, a "Reset node" is needed to activate the change.