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Honeywell S7810M Manual
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Honeywell S7810M Manual

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APPLICATION
The Honeywell 7800 SERIES is a microprocessor-based
integrated burner control for automatically fired gas, oil or
combination fuel single-burner applications. The 7800
SERIES is programmed to provide a level of safety, functional
capability and features beyond the capacity of conventional
controls. Functions provided by the 7800 SERIES include
automatic burner sequencing, flame supervision, system
status indication, system or self-diagnostics and
troubleshooting.
The S7810M ModBus™ Module supports remote mounting of
a Keyboard Display Module (KDM), personal computer/PLC
interface for multi-dropped 7800 SERIES subnetworks, and
remote reset of a 7800 SERIES Relay Module.
SPECIFICATIONS
Model: S7810M ModBus™ Module.
Electrical Ratings:
Voltage and Frequency:
13 Vdc peak full-wave rectified (+20/-15%)
Power Dissipation:
2W maximum.
Terminal Ratings:
Power: 13 Vdc peak full-wave rectified.
Earth ground.
ControlBus™ (1,2,3) and Multi-Drop ModBus™ (6,7,8):
5 Vdc at 60 mA maximum.
Electrical Connector (included):
ControlBus™: 208727 8-pin electrical connector.
® U.S. Registered Trademark
Copyright © 2002 Honeywell • All Rights Reserved
ModBus™ Module
FEATURES
• Multi-dropped communications bus interface.
• Remote control capabilities:
— Standby Hold
— Drive to High Fire
— Drive to Low Fire
— Reset
• Ability to remotely mount a Keyboard Display Module.
• S7810M1029 meets Gastec approval (cannot be reset
through data highway).
Environmental Ratings:
Ambient Temperature:
Operating: -40°F to +140°F (-40°C to +60°C).
Storage: -40°F to +150°F (-40°C to +66°C).
Humidity: 85% relative humidity, continuous, noncondensing.
Vibration: 0.5G environment.
Weight: 4 ounces.
Replacement Part: 208727 eight-pin connector.
Approvals: S7810M1029: Gastec EN268, Report 1156791.
Dimensions: See Fig. 1.
*
*S7810M1029 ONLY
S7810M
PRODUCT DATA
65-0249-4

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Summary of Contents for Honeywell S7810M

  • Page 1 The S7810M ModBus™ Module supports remote mounting of a Keyboard Display Module (KDM), personal computer/PLC interface for multi-dropped 7800 SERIES subnetworks, and remote reset of a 7800 SERIES Relay Module.

  • Page 2: Installation

    Vibration When Installing this Product... Do not install the S7810M where it could be subjected to vibration in Read these instructions carefully. Failure to follow them could excess of 0.5G continuous maximum vibration. damage the product or cause a hazardous condition.
  • Page 3 OF DAISY CHAIN). INSTALL A 120 OHM, 1/4 WATT RESISTOR BETWEEN TERMINALS A AND B OF THE PC/PLC (IF INSTALLED AT ONE END OF THE DAISY CHAIN. INSTALL A 120 OHM, 1/4 WATT RESISTOR BETWEEN TERMINALS 7 AND 8 OF THE LAST S7810M MODBUS™ MODULE IN THE DAISY CHAIN.

  • Page 4: Operation

    (PI-MBUS-300 Rev. J) are 3, 4, 6, and 17. Function codes 3 and 4 are treated the same by the S7810M. Two registers need to be read when the data format is a U32 value (4 bytes); if both registers are MODE LED Light Patterns not read, then a data value of 0 (zero) is returned.
  • Page 5 NEEDLENOSE SCREWDRIVER PLIERS Assign each S7810M in the system a unique address by setting the MODBUS ADDRESS switches on the bottom of the device to the correct number. See Fig. 4. Only RTU communications with 1 Start Bit, 8 Data Bits, 1 Stop Bit and no parity is supported.
  • Page 6 R7999. This information is interpreted by the data updates once a second and holds the last eight seconds of S7810M and placed in Registers 40130-40144. A circular buffer R7999 data to show a data history. The circular buffer is registers scheme can be used to capture all R7999 status information at a 40161-40256 in table 12.
  • Page 7 S7810M MODBUS™ MODULE Table 11. ModBus™ R7999 Register Assignments. Address Register (hex) (dec) Parameter Name 0x0C Format Notes 0080 40129 R7999 reserved Not used—always zero. 0081 40130 R7999 program mode 0—Initiate State. 1—Normal Operation. 2—Alarm Initiate State. 3—Lockout. 4—Not Configured.
  • Page 8 A buffer will contain all 00A6- 40167- R7999 buffer # 1 0-11 zeros if the S7810M received bad data for the buffer time slot. See 00AB 40172 Table 25 for interpretation of bytes 0-11. 00AC-...
  • Page 9 S7810M MODBUS™ MODULE Table 13. ModBus™ R7999 Register Assignments. (Continued) Address Register (hex) (dec) Parameter Name Format Notes 019E 40415 FGR Purge Preset Position 0-4095 019F 40416 Air Lightoff Preset Position 0-4095 01A0 40417 Fuel Lightoff Preset Position 0-4095 01A1...
  • Page 10 2. Parameter values in this table change infrequently and can take up to 39 seconds for all data to be available, except for registers 40443 through 40444, which are updated twice a second. 3. “Device Data Ready” and “S7810M Compatibility” bits can be used to quickly check device availability and compatibility then read/write regis- ters of only these devices.
  • Page 11 S7810M MODBUS™ MODULE Table 15. 7800 SERIES Sequence State Codes Table 15. 7800 SERIES Sequence State Codes and Associated register code values. (Continued) and Associated register code values. (Continued) 7800 SERIES String Code Burner 7800 SERIES String Code Burner cb_sqst...
  • Page 12 S7810M MODBUS™ MODULE 7800 SERIES String Codes Table 15. 7800 SERIES Sequence State Codes and Associated register code values. (Continued) Table 16 contains a listing of all string codes provided by the S7810M. 7800 SERIES String Code Burner The associated string is not implemented in the S7810M; it is a string...
  • Page 13 S7810M MODBUS™ MODULE Table 16. 7800 SERIES String codes. (Continued) Table 16. 7800 SERIES String codes. (Continued) String Code String String Code String IGNITION IGNITION ON RUN HOLD INITIATE RUN/LOWFIRE INITIATE HOLD RUN/TEST SWITCH JUMPERS CHANGED RUNNING ILK JUMPERS WRONG...
  • Page 14 S7810M MODBUS™ MODULE 7800 SERIES Fault Codes Table 16. 7800 SERIES String codes. (Continued) String Code String Table 17 is a complete list of fault codes that may appear in the fault code register. The Fault String Code register will contain the...
  • Page 15 S7810M MODBUS™ MODULE Table 17. 7800 SERIES Fault Codes. (Continued) Table 17. 7800 SERIES Fault Codes. (Continued) Fault Message Fault String Fault Message Fault String Fault Code (NOTE: FAULT n: is not in Code Fault Code (NOTE: FAULT n: is not in...
  • Page 16 S7810M MODBUS™ MODULE Table 17. 7800 SERIES Fault Codes. (Continued) Table 17. 7800 SERIES Fault Codes. (Continued) Fault Message Fault String Fault Message Fault String Fault Code (NOTE: FAULT n: is not in Code Fault Code (NOTE: FAULT n: is not in...
  • Page 17 S7810M MODBUS™ MODULE Response Message Format for Function Code 17. Table 19. Expanded Annunciator First Out Code. (Continued) This format is device specific and is only available for the 7800 EA Status Value Line 2 String Code SERIES burner control. See Table 20.
  • Page 18 Format Notes Description—R7999 circular buffer data structure of registers 40161-40208. Some Index U16H 0-23 of this data is interpreted by the S7810M Byte(s) and is available in registers 40129-40144. Type U16L 0x00 = Unused 0x01 = Used Program Mode/Selected Fuel...
  • Page 19 S7810M MODBUS™ MODULE R7999 Fault Text The R7999 Fault Text is shown indexed by hexadecimal values. Table 26. R7999 Fault Text. Fault Code (hexadecimal) Fault Text 0x13 MV On 0x14 HF and LF on 0x15 BC Transition 0x25 Move Limit Test...
  • Page 20 Automation and Control Solutions Esys ® The Energy Control Company™ website: http://www.esys.us Honeywell Honeywell Limited-Honeywell Limitée 4520 Stine Road, Ste 7 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario Bakersfield, CA 93313 M1V 4Z9 (661) 833-1902 ™...