Installing the S7-400
2-4 AutomationSystem S7-400 Hardwareand Installation
A5E00850741-01
Ways of Connecting Central and Expansion Racks
Centralrack CR
Expansionrack ER 1 Expansionrack ER 4
Expansionrack ER 1
Expansionrack ER 1 Expansionrack ER 4
Expansionwithout 5 V local transfer
Expansionwith 5 V local transfer
Remoteexpansion
IM460-0
IM460-1
IM460-3
Chainlength max. 102.25 m
Chainlength max. 1.5 m
IM461-0 IM461-0
IM461-1
IM461-3 IM461-3
IM460-4
Expansionrack ER 1 Expansionrack ER 4
Chainlength max. 605 m
IM461-4 IM461-4
Chainlength max. 5 m