| PART NUMBER | DESCRIPTION |
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| ENVIRONMENT | 201-930 MCM34 Finished assembly |
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| SPECIFICATION | RANGE/VALUE APPROVALS |
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| Operating Temperature Range | 0 - 40 °C APPROVALS |
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| Operating Humidity Range | 0 - 95 % RH FCC PART 15B, CE-LVD, CE-EMC and CB |
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| PARAMETER | SPECIFICATION |
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| Operating supply Voltage | 12 ± 0.25 VDC |
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| Current Consumption | 15mA to *35mA |
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| NVRAM Capacity | 256 Bytes |
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| Program Code Capacity Volatile RAM | 32 kBytes |
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| Max. Injected Input Current IO1-IO5 | 3 mA, 0-5 VDC Pull-up Resistor IO1- IO5 Input voltage range IO1-IO5 10 kOhm |
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| Max. Injected Input Current InOut 1-2 | 15 mA, 0-5 VDC Pull-up Resistor InOut 1-2 Input Voltage Range 1.5 kOhm |
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| • | The MCM34 FLN5 RS-485 configuration can ONLY be used with a B573 or B576-L Floor Bridge that uses RS-485 FLN5 protocol. It can NOT be used with a B576-S floor bridge which uses the enhanced DM485 RS-485 protocol. |
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| HEADER | PIN SIGNAL FUNCTION NOTES WIRE COLOR 1 Gnd Common NA |
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| H1 -Analog Out 1,2 | 2 AO1 Analog Out 1 NA Driver_index_10V_DC-Pin Index 0 3 AO2 Analog Out 2 Driver_index_10V_DC-Pin Index 1 1 Gnd Common Connect a 01-9489 B485 module to H2 using 5 pin 2 VEE+12V 12 VDC |
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| H2-In/Out 1,2 | 62-1514-A.3 cable. Registry |
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| connection that uses 01- | bus set to 0 in the MCM34. 4 InOut1 UArt Tx 5 InOut2 UArt Rx 1 Gnd Common Brown 2 VEE+12V 12VDC Red 3 S5 bus Mult-drop communication Orange bus 4 Out1 Open -Collector Yellow Driver_Index_Relay-Pin Index 0 Output 5 In2 0-3.3 DC Dry Contact Green Driver_Index_LV_DC- Pin Index 5 |
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| Input | In6 pulled up to 3.3V via 10K resistor 1 Gnd Common NA NA |
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| H4 Analog In 1,2 | 2 AI1 Analog In 1 Driver_index_10V_DC-Pin Index 0 3 AI2 Analog In 2 Driver_index_10V_DC-Pin Index 1 1 Gnd 12 VDC Brown 2 VEE + 12 V I/O Red IO1-IO5 are general purpose Inputs/Outputs and are internally 3 IO1 I/O Orange pulled up to 3.3 VDC via 10K resis- |
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| H5- I/O 1 to 5 | 4 IO2 I/O Yellow tor. Tyical use is for Dry contact 5 IO3 I/O Green inputs or low voltage outputs to 6 IO4 I/O Blue control a connected LED indicator 7 IO5 I/O Violet 1 Gnd 2 3.3VDC 3 SCI_Tx 4 SCI_Rx Connect ST-Link V2 STM32 programmer to reprogram |
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| Programming Header | 5 NRST MCM34 6 SWO 7 SWCLK 8 SWDIO 1 Gnd Common Brown 2 3.3 VDC 3.3VDC Red Connect 203-250 RS 485 adapter |
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| H7 -Alternate RS-485 | 3 RS485 Tx RS485 Tx Orange to H7 if using alternate RS-485 |
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| FLN5 connection if using | FLN5 connection. Registry |
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| Part# 203-250 adapter | 4 RS485 Rx RS485 Rx Yellow 193:11:0:0 SerialPort must be set 5 TXE TXE Green to 1 in the MCM34 6 Not Used Blue 1 Gnd Common Brown 2 12VEE+12 V 12VDC Red 3 S5 Bus Mult-drop communication Orange bus INCOMM MCM34 Product Data Sheet | www.honeywell.com | 8 |
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| LED BEHAVIOUR | DESCRIPTION |
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| Off | MCM34 is not powered On for 1 second, Off for 1 second and repeat- The MCM34 is powered but is NOT connected to a B573 or B576-L Floor Bridge and has |
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| ing | not received a “Central Status Broadcast” from the Room Gateway so it does not think the room is online/connected to the Inncom server. |
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| A blink once per second and repeating | The MCM34 is powered and has received a “Central Status Broadcast” from the Room Gate- way so it thinks the room is online/connected to the Inncom server. 3 blinks every 2 seconds The MCM34 is connected to a B573 or B576-L Floor bridge and receiving FLN5 data, but it has has not received a “Central Status Broadcast” from the Inncom server so it does not think the room is online/connected to the In |
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| Steady Rapid Blink (3 blinks per second) | The MCM34 has received an Address or I/O Map teach command. Press the SW1 button on the MCM34 to accept the teach command. Eight blinks 1/2 seconds apart, followed by a The MCM34 was just taught and accepted an Address or I/O Map and then Reset. very rapid blink for 4 seconds On for 1 second , followed by a very rapid blink The MCM34 just had power applied or was Reset , or the SW1 switch was pres |
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| for 4 seconds | MCM34 sent a reverse bind command but never received a Bind/Configuration offer. SW1 is used for teaching the MCM34 a specific Address or function map. Using the INNCOM thermostat service mode or PC configuration tool, send a “Device Address Teach” or “IOMap Teach” command to the MCM34. Observe the MCM34 Diag LED change to a Fast Blink pattern (3 blinks per second), indicating it is ready to accep |
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