44
Compoway-F communication
Section 3-3
processing the response this function block will perform the word swap-
ping automatically. Refer to
Appendix B Function Block Programming
for
more details.
Example
Writing the lower limit of the setpoint to the upper limit of the setpoint for chan-
nel 1 is done with the command: 0102C1000300000100000005(hex).
The response is (no error occurred): 01020000(hex).
Sending free
communication blocks
A write or operation command will be sent to the Temperature Controller
when the command is changed from zero’s to the correct data. When the
command data is set to zero, the response data will also be cleared. The read
type command blocks are sent every Compoway-F cycle.
Broadcast
Broadcasting can be used for operations and writes. If the device address is
set to 00FF(hex), a broadcast is sent to all TC’s using XX broadcast. The
response code will be filled with a response to indicate that the command has
been sent to the TC’s.
Note
It is recommended that free communication blocks are restricted to the end of
the configuration. Placing a free communication block in the middle of other
modules is allowed, it will influence the device number of other modules. The
device number is affected due to the fact that the slot number is a representa-
tion of the device number.
Example
Configuring 2 x E5ZN basic modules and a free communication write block:
If there is no device for a device address between two existing consecutive
device addresses, the empty slot module must be used. The slot number rep-
resents the device address.
Note
The PROFIBUS Configuration for this slave is limited to 200 bytes input and
200 bytes output.
3-3-4
Auxiliary RS-232C interface
The Gateway has an implemented RS-232C interface. With this interface it is
possible to connect to an IBM compatible computer with a serial port and
send and receive data to a TC using the software package CX-Thermo. The
RS-232C auxiliary interface can only communicate with Compoway-F bus.
Using CX-Thermo
Before using CX-Thermo DIP-switch 4 must be set on, a group of four DIP-
switches is located on the front of the Gateway Unit.
Note
CX-Thermo is not shipped with the Gateway Unit.
Recommended
Not recommended
Slot
number
Module
Device
number
Module
Device
number
1
E5ZN Basic
1
E5ZN Basic
1
2
E5ZN Basic
2
Free com-
munication
write block
-
3
Free com-
munication
write block
-
E5ZN Basic
3