40 | RMC-100| 2105552MNAE 
 
– Equipment damage. When the TFIO interface is disabled, the modules remain 
powered. Remove the power from the RMC before connecting or disconnecting additional 
TFIO modules or the TFIO cable. Failure to power down the RMC can result in damage to the 
module. The procedure in this section as
sumes the controller is powered off. 
Table 3-7 identifies the different module types available with the RMC that support 9 volts to 30 volts 
operation. The RMC does not support the TFIO CIM module, part number 2100421. 
Table 3-7: TFIO modules 
 
 
– Equipment damage. The maximum voltage to operate legacy TFIO modules 
(not labeled as M2) is 12 Vdc. More than 12 Vdc damages legacy TFIO 
modules. Only the 
TFIO M2 modules support voltages higher than 12 Vdc.
 
To connect the TFIO module(s): 
 
– Equipment damage. The output voltage at the following pins depends on the 
external power supply connected to the CHARGER/EXT PWR port:
 
  J2-1, J4-1 and J4-3 (on the TFIO valve control interface module) and  
  J1-1, J2-1, J3-1, J4-1 (on the TFIO analog output module) 
Before connecting to these pins, verify that 
the external device is compatible with the input 
voltage at the CHARGER/EXT PWR port.
 
1.  Attach the TFIO module to the DIN rail. 
2.  Attach the TFIO interface cable to the first TFIO module. 
3.  Attach the next TFIO module to the DIN rail. 
4.  Position it beside the previously attached module and snap them together. 
5.  Repeat steps 3 and 4 to attach the additional TFIO modules as required. 
 
Each port supports a maximum of 22 modules. The TFIO A port does not 
have to be full before using TFIO B
. 
6.  Attach the 9-pin connector of the TFIO interface cable to the TFIO A port on the RMC.  
7.  Using the second TFIO interface cable, repeat steps 1 through 5 for the TFIO B port. 
8.  Attach the 9-pin connector of the TFIO interface cable to the TFIO B port. 
9.  Loosen the terminal connector screws for the correct pin. 
10.  Insert the wires in the required TFIO pins. 
11.  Tighten the terminal connector screws.  
To configure the TFIO, see section 4.10
. 
Figure 3-13 shows the pinouts of a TFIO module. For additional information, refer to the TFIO Module 
User Manual listed under Additional information.