Sim 850; Fox Pg-S; Fox Pg-M - Siemens SINUMERIK 840 Planning Manual

7 Configuration and Test

7.2.2 SIM 850

7.2.2 SIM 850
SIM 850 makes it possible to simulate the interface session between SINUMERIK 850 and
production control computer. One node (NC or computer) is replaced by a personal computer
with the program "SIM 850". Single message frames and message frame sequences can be
tested.
The link between the communicating nodes can be a point-to-point connection or a bus
connection.
The message frames are created by the user with a text editor (e.g. Wordstar, VEDIT) on the
PC. The message frame traffic is recorded in a log file and is displayed on the screen.
The log file can be printed out.
7.2.3

FOX PG-S

The FOX PG-S simulator is used for the installation of control systems and computers with
serial asynchronous links.
The simulator is connected to the object to be tested (control, computer) and simulates the
peer node.
The following functions are supported:
• Receive data from connected controls,
• The simulator sends data to connected controls.
The necessary response messages and/or data message frames can be sent either
automatically or by using function keys.
Initiation conflicts are resolved automatically. The simulation program executes necessary
message frame repetitions automatically. Message frames are repeated max. twice.
Representation is either in ASCII or HEX code.
7.2.4

FOX PG-M

This program is used to monitor the message frame traffic which is executed via the point-to-
point connection. For this purpose, an adapter looped into the transmission circuit and a FOX
PG-M program which is executable on PG 675 or PG 685 are required. The adapter ensures
opto-decoupled monitoring of the message frame traffic thus preventing interference of the
data traffic. The FOX PG-M evaluation program serving the PLC and printer interface of the
programmer, is called by the CP/M-86 operating system.
During recording of the data traffic, a ring buffer in the PG (reserved memory capacity in the
RAM area) is written in parallel. It is only erased again when the FOX PG-M monitoring
program is quitted.
The contents of the ring buffer can be stored on a formatted floppy disk. The floppy disk files
can also be output on the screen within the FOX PG-M program using a function key or to a
printer, e.g. PT 88.
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SINUMERIK 840/880 (PJ)