6ES7331-7TF01-0AB0 SM331, 8AI, 0/4-20MA HART

the above detail Provied by Eastern is Fail Safe Module, this is used with Normal System,

& also you need PDM Software,

SIMATIC PDM S7 V6.0 6ES7 658-3KX06-0YA5
Product package for use in a SIMATIC S7 configuration environment, with
• SIMATIC PDM Basic V6.0
• Integration in STEP 7 / PCS 7
• 128 TAGs
6 languages (German, English,
French, Italian, Spanish, Chinese), software class A, executes with Windows 2000 Professional or Windows XP Professional, floating license for 1 user Type of delivery: License key disk, certificate of
license including terms and conditions; software SIMATIC PDM V6.0 and device library on CD/DVD