I. Non-serial with Keypad
A. Non-serial "P" style contol
1. Date codes of 84321 to 86173
2. Liquid crystal display (LCD) with 12-button keypad
3. Power supply: +12 VDC
4. Boards:
i. motherboard
ii. processor board
iii. relay output board
iv. opto-isolator
5. Maximum of 99 formulas or 500 steps

II. Non-serial xxA, xxG and xxJ Controls
A. xxA Controls
1. Single formula
2. No display
3. Power supply: +5, +12, -12 VDC
4. 8085 microprocessor
5. Relay output board
6. Snubber board

B. xxG (system 7) Controls
1. Seven fixed formulas
2. Eight available industry configurations
3. LED display
4. Power supply: +5, +12, -12 VDC
5. 8085 microprocessor
6. Relay output board
7. Snubber board

C. xxJ (EP 10) Controls
1. 10 formulas that can be modified by changing or deleting steps, but not adding them.
2. Seven available industry configuartions set by DIP switch
3. Liquid crystal display
4. Intel 8085 microprocessor
5. Power supply: +5, +12, -12 VDC
6. Relay output board
7. Snubber board
8. Analog-to-digital board for temperature

D. xxJ Controls (EP plus) - replaced EP 10 at date code 91312
1. Intel 8088 microprocessor
2. Liquid crystal or vacuum florescent display
3. Maximum of 30 formulas or 255 steps
4. 10 present formulas that allow changing, adding or deleting steps
5. Eight industry configurations set by DIP switch
6. At datecode 93432: six more outputs on processor board
7. Additional 6-output board and snumbbers for options

E. xxJ Controls (EP plus) for HxJ, TxJ, and 30 inch VxJ models
1. Intel 80188 microprocessor
2. Vacuum flourescent display
3. Membrane buttons
4. Maximum of 30 formulas or 255 steps
5. 10 present formulas that allow changing, adding or deleting steps
6. Eight industry configurations set by DIP switch
7. At datecode 93432: six more outputs on processor board
8. Additional 6-output board and snumbbers for options

III. Serial Microprocessor Controls
A. Mark I
1. Liquid crystal display
2. 12 button keypad
3. 8085 microprocessor
4. Multiplex input board
5. Battery mounted to middle of processor board
6. Power supply: +5, +12, -12 VDC
7. 16-output board
8. 8-output/16-input board
9. Analog-to-digital board for temperature
10. Digital-to-analog board for variable speed and modulating steam valve
11. Maximum of 99 formulas or 500 steps

B. Mark II (90167 through January 1995 for open pocket models; still used for divided cylinder models)
1. Vacuum flourescent display
2. 30 button keypad
3. 8088 microprocessor
4. Battery mounted on seperate board
5. Power supply: +5, +12, -12 VDC
6. 16-output board
7. 8-output/16-input board
8. Analog-to-digital board for temperature
9. Digital-to-analog board for variable speed and modulating steam valve
10. Maximum of 99 formulas or 500 steps

C. Mark III - "Reduced Wiring" (December 1994 - November 1998)
1. Similar to Mark II except:
a. New software part number
b. Removed 24VAC control tansformer and circuitry
c. Reduced total number of relays
d. Many switch inputs wired direct, rather than to relay which made an input
2. Power supply: +5, +12, -12 VDC
3. 16-output board
4. 8-output/16-input board
5. Analog-to-digital board for temperature
6. Digital-to-analog board for variable speed and modulating steam valve
7. Maximum of 99 formulas or 500 steps

D. Mark IV (only for presses, shuttles, dryers, etc)
1. Electronic motor overloads
2. New style input/output boards
3. New style input/output boards employ LEDs for inputs, outputs and serial link.
4. New board connectors
5. Several small boards

E. Mark V ("Euro-style controls", November 1998 to present)
1. DIN rail component mounting
2. New wire number designations
3. Gray wire ducting (Panduit)
4. Circuit breakers replace fuses
5. Control boxes redesigned
6. New style input/output boards employ LEDs for inputs, outputs and serial link.
7. New board connectors
8. Several small boards


This information is extracted from Milnor manual MXUUUU01- Guide to basic troubleshooting. WLS 4/22/02