ATT2100 TEMPERATURE TRANSMITTER
Operation Manual M2100-REV-G
17
Table 3-2. Fail Mode
Fail Mode and EEPROM Write Selection Switch on CPU Board
EEPROM Writing [Down of Left]
Alarm Down (4mA) [Down of Right]
EEPROM Protect [Up of Left]
Alarm Down (20mA) [Up of Right]
Figure 3-1. Fail Mode and EEPROM-Write Selection Jumper Switch
Figure 3-2 Fail Mode Selection Jumper Switch of LCD Module
3.6 EEProm-Write Enable / Disable Mode Switch
There is the EEPROM (Electrically Erasable Programmable ROM) restoring various configuration variables
in Transmitter. For protect to change configuration variable data in software, hardware side there is
Write-Protect Mode and Jumper Switch selected it segmented "EEP-Write DIS / EN " in Main CPU Module.
Thus if you connect Jumper to DIS you can't change configuration data in EEPROM, when you connect
Jumper to EN you can change configuration data in EEPROM. No connected Jumper, it is classified EN. At
the factory before shipment, it is configured "EN". (Following figure 3-4)
Fail Mode Select
Jumper Switch