Setup And Adjustments - Johnson Controls IOM2721 Installation Manual

Table 5: Termination details
Type of Input/
Type of field device
Output
Analog Output
AO
(Current)
4–20 mA Output to
AO
Actuator
Voltage (Analog Output) AO
4–20 mA Output to
AO
Actuator

Setup and Adjustments

Setting the device address
About this task:
Metasys expansion modules are master devices on MS/
TP (SA or FC) buses. Before operating an expansion
module on a bus, you must set a valid and unique device
address for each expansion module on the bus. You set
an expansion module's device address by setting the
positions of the switches on the DIP switch block at the
top of the expansion module . Device addresses 4 through
127 are the valid addresses for these expansion modules.
The DIP switch block has eight switches numbered 128,
64, 32, 16, 8, 4, 2, and 1. Switches 64 through 1 are device
address switches. Switch 128 must be set to off for all
hard-wired SA and FC bus applications. Switch 128 must
be set to OFF for all hard-wired SA and FC Bus applications
Termination diagrams
Figure 9: Device address DIP switch block set to
address 21
IOM2721 Input/Output Module Installation Guide 11