EC-2000-CES MANUAL
52
SECTION 12 PRESS CONTROL INTERFACE - SERIAL PORT
The serial interface assembly makes it possible for the CES-EC-2000 control to communicate with
another microprocessor, main computer or logic controller. This communication link is an RS-422
converter and a 232 data splitter module that is mounted on the control side panel. These modules then
plug in to the controller bake board and multiplex with the keypad to communicate. The port can be
utilized to set references (i.e., speeds and angles) and to communicate diagnostic information, faults,
etc. Note, when the press control is communicating with the CES control, the keypad is momentarily
disabled. This is to avoid the issue of both keypad and port trying to program the control at the same
time.
12.0 SERIAL PORT PRESS CONTROL INSTRUCTIONS
A resume of serial interface commands from the press control to the DMR is as follows:
AA Accept downloaded parameters that follow.
BB Send fault codes
CC Send monitor data.
DD Begin using parameters down loaded with last AA commands
EE
Echo back last AA parameters.
The press control may have constraints on changing of speeds and press drive parameters while the
press is running. The CES controller will change parameters as directed by the press control.
Press control parameters are sent by the press control in a packet of bits representing ASCII characters.
The first two ASCII characters will be AA. The packet length is 68 characters. ASCII “0” characters are
used to complete the 68-character packet. Upon receiving an EE command, the AA packet will be
transmitted back to the press control by the DMR for comparison to ensure its accuracy. The AA will be
changed to EE when sent back.
A typical program to run a press with a Single Speed and use the slowdown function to get good parts
would be set up as follows:
1. Angle No. 1 = 340 degrees
2. Speed No. 1 = 16 SPM
3. Angle No. 2 = 160 degrees
4. Speed No. 2 = 10 SPM
5. Angle No. 3 = 185 degrees
6. Speed No. 3 = 16
7. Angle No. 4 = 360 degrees
8. Speed No. 4 = 10
9. Angle No. 5 = 360 degrees
10. Speed No. 5 = 10
11. Angle No. 6 = 360 degrees
12. Speed No. 6 = 10
13. Creep Angle = 305 degrees
Summary of Contents for 015-000248-2002
Page 7: ...EC 2000 CES MANUAL 7 Figure 1 Eddy Current Drive Block Diagram ...
Page 8: ...EC 2000 CES MANUAL 8 Figure 2 EC 2000 CES Keypad Display ...
Page 12: ...EC 2000 CES MANUAL 12 ...
Page 16: ...EC 2000 CES MANUAL 16 Figure 4 Keypad Cutout Template to Scale Inches ...
Page 17: ...EC 2000 CES MANUAL 17 Figure 5 Keypad Dimensions to Scale ...